Set release version numbers to 19.0-rc2

Set release version numbers to 19.0-rc1

Fix a few calls to String.getBytes(Charset), which didn't exist in JDK5.

specify release version numbers

specify release version numbers

specify release version numbers

specify release version numbers

Recover from Harmony Type.toString() bug, which affects Android Froyo:

https://stackoverflow.com/a/8169250/28465

specify release version numbers

specify release version numbers