adjusting ofxGridSystemArray to account for top margin when establishing grid
added getAlignment method to ofxTextObject
Added a pause method to the ofxVideoPlayer
ofximage delete ofImage! Fixing memory leak.  Merge in Maja's changes
check if image is null before getting height and width
Textures can now be set by reference in ofxpolygon objects
Added a new special character, minus/substract (U+2212), to ofxSosoTrueTypeFont.