doc(eval): include latest relevant Blob changes

Also includes some small relevant nearby non-Blob changes and typo
fixes.

Changes are included from:
- v8.1.0815
- v8.1.0846
- v8.1.1084
- v8.1.2326
- v8.2.1969
- d89682477c
- d09091d495
- 53f7fccc94

runtime/doc/eval.txt

@@ -604,8 +604,11 @@ Functions that can be used with a Dictionary: >
 
 1.5 Blobs ~
 						*blob* *Blob* *Blobs* *E978*
-A Blob mostly behaves like a |List| of numbers, where the numbers have an
-8-bit value, from 0 to 255.
+A Blob is a binary object.  It can be used to read an image from a file and
+send it over a channel, for example.
+
+A Blob mostly behaves like a |List| of numbers, where each number has the
+value of an 8-bit byte, from 0 to 255.
 
 
 Blob creation ~
@@ -663,6 +666,7 @@ Part of a blob ~
 A part of the Blob can be obtained by specifying the first and last index,
 separated by a colon in square brackets: >
 	:let myblob = 0z00112233
+	:let shortblob = myblob[1:2]	" get 0z1122
 	:let shortblob = myblob[2:-1]	" get 0z2233
 
 Omitting the first index is similar to zero.  Omitting the last index is
@@ -779,8 +783,9 @@ Expression syntax summary, from least to most significant:
 	etc.			As above, append ? for ignoring case, # for
 				matching case
 
-	expr5 is expr5		same |List| instance
-	expr5 isnot expr5	different |List| instance
+	expr5 is expr5		same |List|, |Dictionary| or |Blob| instance
+	expr5 isnot expr5	different |List|, |Dictionary| or |Blob|
+				instance
 
 |expr5|	expr6
 	expr6 +	 expr6 ...	number addition, list or blob concatenation
@@ -951,12 +956,12 @@ Dictionary and arguments, use |get()| to get the function name: >
 	if get(Part1, 'name') == get(Part2, 'name')
 	   " Part1 and Part2 refer to the same function
 
-When using "is" or "isnot" with a |List| or a |Dictionary| this checks if the
-expressions are referring to the same |List| or |Dictionary| instance.  A copy
-of a |List| is different from the original |List|.  When using "is" without
-a |List| or a |Dictionary| it is equivalent to using "equal", using "isnot"
-equivalent to using "not equal".  Except that a different type means the
-values are different: >
+Using "is" or "isnot" with a |List|, |Dictionary| or |Blob| checks whether
+the expressions are referring to the same |List|, |Dictionary| or |Blob|
+instance.  A copy of a |List| is different from the original |List|.  When
+using "is" without a |List|, |Dictionary| or |Blob|, it is equivalent to
+using "equal", using "isnot" is equivalent to using "not equal".  Except that
+a different type means the values are different: >
 	echo 4 == '4'
 	1
 	echo 4 is '4'
@@ -2155,21 +2160,21 @@ v:swapcommand	Normal mode command to be executed after a file has been
 		For ":edit +cmd file" the value is ":cmd\r".
 
 				*v:t_TYPE* *v:t_bool* *t_bool-variable*
-v:t_bool	Value of Boolean type.  Read-only.  See: |type()|
+v:t_bool	Value of |Boolean| type.  Read-only.  See: |type()|
 					*v:t_dict* *t_dict-variable*
-v:t_dict	Value of Dictionary type.  Read-only.  See: |type()|
+v:t_dict	Value of |Dictionary| type.  Read-only.  See: |type()|
 					*v:t_float* *t_float-variable*
-v:t_float	Value of Float type.  Read-only.  See: |type()|
+v:t_float	Value of |Float| type.  Read-only.  See: |type()|
 					*v:t_func* *t_func-variable*
-v:t_func	Value of Funcref type.  Read-only.  See: |type()|
+v:t_func	Value of |Funcref| type.  Read-only.  See: |type()|
 					*v:t_list* *t_list-variable*
-v:t_list	Value of List type.  Read-only.  See: |type()|
+v:t_list	Value of |List| type.  Read-only.  See: |type()|
 					*v:t_number* *t_number-variable*
-v:t_number	Value of Number type.  Read-only.  See: |type()|
+v:t_number	Value of |Number| type.  Read-only.  See: |type()|
 					*v:t_string* *t_string-variable*
-v:t_string	Value of String type.  Read-only.  See: |type()|
+v:t_string	Value of |String| type.  Read-only.  See: |type()|
 					*v:t_blob* *t_blob-variable*
-v:t_blob	Value of Blob type.  Read-only.  See: |type()|
+v:t_blob	Value of |Blob| type.  Read-only.  See: |type()|
 
 				*v:termresponse* *termresponse-variable*
 v:termresponse	The escape sequence returned by the terminal for the DA
@@ -2574,7 +2579,10 @@ remote_read({serverid} [, {timeout}])
 remote_send({server}, {string} [, {idvar}])
 				String	send key sequence
 remote_startserver({name})	none	become server {name}
-remove({list}, {idx} [, {end}])	any	remove items {idx}-{end} from {list}
+remove({list}, {idx} [, {end}])	any/List
+					remove items {idx}-{end} from {list}
+remove({blob}, {idx} [, {end}])	Number/Blob
+					remove bytes {idx}-{end} from {blob}
 remove({dict}, {key})		any	remove entry {key} from {dict}
 rename({from}, {to})		Number	rename (move) file from {from} to {to}
 repeat({expr}, {count})		String	repeat {expr} {count} times
@@ -6314,9 +6322,11 @@ luaeval({expr}[, {expr}])
 		to Vim data structures. See |lua-eval| for more details.
 
 map({expr1}, {expr2})					*map()*
-		{expr1} must be a |List| or a |Dictionary|.
+		{expr1} must be a |List|, |Blob| or |Dictionary|.
 		Replace each item in {expr1} with the result of evaluating
-		{expr2}. {expr2} must be a |string| or |Funcref|.
+		{expr2}.  For a |Blob| each byte is replaced.
+
+		{expr2} must be a |string| or |Funcref|.
 
 		If {expr2} is a |string|, inside {expr2} |v:val| has the value
 		of the current item.  For a |Dictionary| |v:key| has the key
@@ -6352,11 +6362,11 @@ map({expr1}, {expr2})					*map()*
 		|Dictionary| to remain unmodified make a copy first: >
 			:let tlist = map(copy(mylist), ' v:val . "\t"')
 
-<		Returns {expr1}, the |List| or |Dictionary| that was filtered.
-		When an error is encountered while evaluating {expr2} no
-		further items in {expr1} are processed. When {expr2} is a
-		Funcref errors inside a function are ignored, unless it was
-		defined with the "abort" flag.
+<		Returns {expr1}, the |List|, |Blob| or |Dictionary| that was
+		filtered.  When an error is encountered while evaluating
+		{expr2} no further items in {expr1} are processed.  When
+		{expr2} is a Funcref errors inside a function are ignored,
+		unless it was defined with the "abort" flag.
 
 		Can also be used as a |method|: >
 			mylist->map(expr2)