add Transifex config file for the 'tx pull' tool
escape " quotes in strings.xml so that they show up in the interface

Otherwise, they get stripped out by something.
remove \n from strings.xml, they usually break in translations

The only formatting character that should be included in a strings.xml
string is \" for adding quotes and printf-style format strings.  Newlines,
\n, tabs, etc. should not be included since they are usually messed up in
the process of translating.
fix warnings in first_run_welcome_activity.xml, including unneeded TableLayout
standardize on "Gnu Privacy Guard" as the name of the app
gnupg-for-java: use POSIX FILE streams when creating GnuPGData for files

Previously, GnuPGData(File f) would load the entire contents of the file
into memory, then pass a memory gpgme_data_t to gpgme.  This is horrible when
working with large files or machines with limited memory.  This patch uses
the gpgme function for creating a gpgme_data_t from a POSIX FILE stream.
add the gpg2 exit value to Gpg2TaskFragment results