Merge pull request #3 from chaosct/master

Fixes #2
added VecSlider and ColorSlider
added brief comments
Adding position optional arguments to ofxParamEdit::setup()

default values relate to ofGui defaults
Merge branch 'HEAD' of https://github.com/nariakiiwatani/ofxParamEdit.git

Conflicts:
	src/ofxParamEdit.h