REBASE make project build depends work better so builds don't always get triggered
the Android libtool patch is included in libgpg-error and libgcrypt now

libgcrypt v1.6.0 builds fine for Android straight from the official release
while libgpg-error still needs the sed hacks to work.

refs #1548
REBASE convert KeyListFragment to plain ListFragment style
REBASE search keyservers in a Loader and show results in KeyListFragment
openpgp/keyserver: search by keyId also, if search is 8 or >=16 char hex

If the search string is a valid 8-char or 16-char key ID, but does not
start with "0x" then the keyserver will not search by keyID.  If the string
starts with "0x", then the keyserver will only search by keyID. This commit
checks if the string could be a valid hex key ID, and if so, runs it first
as a key ID search, then second as a name/email search.

refs #2756
REBASE search keyservers in a Loader and show results in KeyListFragment
replace ActionBarSherlock with android-support-v7-appcompat

android-support-v7-appcompat and ActionBarSherlock are both library
projects, so they probably have the same amount of pain in handling them in
Eclipse, etc.  But android-support-v7-appcompat supports ActionModes like
the multiple selection mode of the ActionBar.  android-support-v7-appcompat
is also officially supported by Google.

https://www.grokkingandroid.com/migrating-actionbarsherlock-actionbarcompat/

closes #1467
setup android-support-v7-appcompat as library project

refs #1467
port all UI from ActionBarSherlock to android-support-v7-appcompat

The app: thing in the XML files is odd, otherwise it was pretty simple.

closes #1467
allow "navigate up with app icon" in ActionBar for DebugLogActivity

Just provides the standard way to get back to MainActivity