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
Add ofWrap(), replace implementations of ofWrapDegrees(), ofWrapRadians().
Fix implementation of ofPolyline::wrapAngle()
Update config.project.mk

The addons cflags were missing in the new Makefile system.
glfw3 dnd headers
ofAppGLFWWindow: dnd methods
fix for VS. closes #2186 closes #2213
updated fix for vs projects path. closes #2186 closes #2213
glfw: osx d&d working
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path

Conflicts:
	libs/openFrameworks/utils/ofFileUtils.cpp
glfw: linux library with dnd
Merge branch 'feature-dnd' of github.com:arturoc/openFrameworks into feature-dnd
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path
Merge branch 'develop' of github.com:openframeworks/openFrameworks into Feature-Win32-Path
ofAppGLFWWindow: remove custom implementation for getWindowPos osx
osx: glfw library with latest master fix for getWindowPosition
Merge branch 'feature-dnd' of github.com:arturoc/openFrameworks into feature-dnd
Merge pull request #2141 from LeoColomb/Feature-Win32-Path

Add getCurrentExePath() for Win32