Add getCurrentExePath() for Win32
Fix ofFileUtils for Win32

* Use for instead of while
* Fix error message
* Improve removeTrailingSlash() for Win32
* Fix return empty
Avoid infinite loop in getCurrentExePath Win32

Believe in MAX_PATH max
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path

Conflicts:
	libs/openFrameworks/utils/ofFileUtils.cpp
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path
Merge pull request #2141 from LeoColomb/Feature-Win32-Path

Add getCurrentExePath() for Win32