Merge branch 'release/v2.7.3' into develop
Django security update + fix lua md5 update
improve lua
lua improve : use json only when needed
lua improve : texttospeech
lua improve : lfs_cache
lua : add info on installed luarocks
lua : add simple example test_db.lua
lua move inspect to debugger
lua fix bug debugger
update django - Django==1.5.4
better spreading of call task
improve dbh_light and remove debugger
add local debugger for database.lua
remove console.log use debugger
move local var on lua
update version v2.7.4
Merge branch 'release/v2.7.4'