ByteBuffer List fixes:

Stop assuming everything is array backed.
readString/peekString refactor.
Default charset is ascii.

SSL:

Conscrypt an SPDY prep.
derp.
Merge branch 'master' of https://github.com/koush/AndroidAsync

# By Koushik Dutta
# Via Koushik Dutta
* 'master' of https://github.com/koush/AndroidAsync:
  derp.
  ByteBuffer List fixes: