rewrote ofxUICanvas::removeWidgets() to effectively remove all widgets from canvas
selectedIndeces for drop downs
Merge pull request #144 from obviousjim/develop-reza

selectedIndeces for drop downs
added getKind to ofxUIEventArgs
Added an int slider.
Fixed a missing clamp when drawing an ofxUISlider.
Merge pull request #147 from morethanlogic/feature-intslider

Added an int slider
Fixed conflict in Win32 when using the windows.h header (like when using a Kinect for example).
Merge pull request #149 from morethanlogic/feature-win32

Fixed conflict in Windows when using the "windows.h" header
minimal changes to an example
attempting merge
Merge branch 'master' of https://github.com/outsidecontext/ofxUI