Add a copyright header
Add comment blocks for similar functions
Add fn vc_addremove_git and copyfile helpers
Initial import of the old build_firefox.sh

This will be reworked into ttk-build a fully ttk.inc.sh compliant script
source ttk.inc.sh
Use all_langs() to always have the latest list
Rework dirs so that we build in the translations
Phaselist was moved into .ttk/firefox
Replaced by ttk-langs, ttk-get and ttk-put
Ignore work dirs
Fix logging messages
Allow missing language mappings file
get_language_pootle - process multiple languages
Use get_language_pootle in ttk-get related fns
Correct folder for en-US extraction
Fix revert of unchanged POT files