this patch converts to code to use the convenience functions instead
of the math toolboxes whereever possible. the main advantage is that
Opm::foo(x) will work regardless of the type of `x`, but it also
reduces visual clutter.
also, constant Evaluations are now directly created by assigning
Scalars, which removes further visual noise.
while I hope it improves the readability of the code,
functionality-wise this patch should not change anything.
this patch removes the in-file lists in favor of a global list of in
the COPYING file. this is done because (a) maintaining a list of
authors at the beginning of each source file is a major pain in the
a**, (b) for this reason, the list of authors was not accurate in
about 85% of all cases where more than one person was involved and (c)
this list is not legally binding in any way (the copyright is at the
person who authored a given change; if these lists had any legal
relevance, one could "aquire" the copyright of the module by forking
it and replacing the lists...)
normally this is not a problem, but template functions which take two
arguments, will break, i.e., the following will not compile
```c++
float f = 1.23;
std::max(f, 2.0*f);
```
this is because the second argument for max gets silently cast to
`double` which causes the compiler to be confused because it cannot
determine a uniform type for the arguments passed to
std::max<T>(a, b)...
most of these people like to inflict pain on themselfs (i.e., warnings
in their own code), but they usually don't like if pain is inflicted
on them by others (i.e., warnings produced by external code which they
use). This patch should make these kinds of people happy. I'm not
really sure if the code is easier to understand with this, but at
least clang does not complain for most of the warnings of
"-Weverything" anymore.
