Implementing BitmapText word wrap. Also various fixes to BitmapText on Flash: fixing color/alpha and scaling bugs, and improving render performance, especially when text is gradually added to.
Fixing bug - cpp doesn't automatically convert glyph names like '&quot;' etc.
Compute textWidth/textHeight when setting text on native.
Deal with missing glyphs; accidentally swapped < and >.
Formatting - changing spaces to tabs.
Splitting wordWrap into its own function, and also splitting words at hyphens, not just spaces.
Merge pull request #192 from bendmorris/master

BitmapText improvements: implementing word wrap, improving Flash performance, and fixing some bugs.