This code hasn't used CharsetUtils since 2011. Time to let it die.

Change-Id: I4ca551fc6bb7dac5c7fa4efd89448e0db9c78849
vcard: Add support to generate vcard jar.

Add support to generate vcard jar.

Change-Id: I7a7ccac4c5f348b406c64b5f9d745427bb2b18c0