Added SparseLongArray, SparseFloatArray, SparseDoubleArray, SparseByteArray, DoubleArrayLiist, CharArrayList, ByteArrayList, BooleanArrayList. Fixed LongArrayList, IntArrayList. Added SparseArrayUtils.valuesToList and a few more SparseArrayUtils.toString.
Added text/plain MIME type.
Removed a bunch of useless comments.
Added DatabaseUtils.
Merge remote-tracking branch 'nicolas/GLES2-AnchorCenter' into HEAD