Update translations from transifex
Add transifex files in git

Add .tx/config files in git for every tool
Add la keymap in known keymaps

Add "la|latam|" in list of known keymaps
Add reposetup script

Initial commit of the reposetup script, that helps choose a mirror for
the repositories.
Add salix-version file

Add a salix-version file that points to the current salix version that
is running.
Install repomirrors file

When installing, include the repomirrors file, that includes the list of
available mirrors.
Add reposetup.pot file

Create the reposetup.pot file that holds the strings to be translated in
the script.
Chance cancel message from "Exit" to "Cancel"
Add reposetup in compile and install scripts
Put repomirror file in it's own directory

Place the repomirror file in /usr/share/salixtools/reposetup, instead of
leaving it in /usr/share/salixtools. It's not a general file, it's
specific to this tool.