sync to Contacts after install/upgrade

Since GPGA's key list screen is now based on the Contacts database, the
key list will be empty after upgrading until GPGA has synced to the
Contacts database.  Therefore, trigger a sync as soon as possible, once all
of the native bits are installed and setup.
hide any active ActionBar when switching tabs

This will hide any active ActionBar rather than just the "Find Keys" one.
ActionBar for keyserver send/receive on public key listing

This adds rudimentary support for sending keys to the keyserver, and
updating keys in the keyring from the keyserver.
tame the debug messages for release

Lots of unnecessary debug messages... purge!
enable GnuPG's built-in translations

libgpg-error and gnupg both include their own text strings as well as their
own translations of those text strings.

refs #1448
purge references to iconv, its not needed, Android is UTF-8

iconv is a library for converting between different formats.  Since Android
should be all UTF-8, there should be no need for iconv.  Its been working
so far without it, so I'm purging the iconv stuff.

Here's the thread:
http://lists.gnupg.org/pipermail/gnupg-devel/2012-January/026529.html
http://www.gossamer-threads.com/lists/gnupg/devel/56909
REMOVE ME/DO NOT MERGE debug flags for native builds

Do not ever include this commit in the official repo!  Its for debugging only!
REMOVE ME/DO NOT MERGE enable debug logs

Do not ever include this commit in the official repo!  Its for debugging only!