* Added documentation for Interpolate-3.
* Some fixes.
* Fixed some typos.
* Now Interpolate-3 is Interpolate-4.
* Fixed typo.
* DEleted unused 'mode' 'area'.
* Fixed some typos.
* Now 'axes' attribute is an input of Interpolate.
* Added description of variants of nearest_mode.
* Added descriptions of coordinate transformation modes.
* Now 'axes' is an optional input.
* Fixed typo.