Added link to FontIcon-Prepare tool inside readme.
Added possibility to update icon text, size and color.
Updated example to demostrate how to update icon text and color.
Added getters for class FontIconDrawable.
Class FontIconDrawable implements methods onSaveInstanceState() and onRestoreInstanceState().
Save/restore state of custom drawables.
Updated version of library to 0.1.0; updated readme.
Merge branch 'dev'