[ADD] Some documentation in code for Lua scripts (to be continued)
Merge branch 'master' into doc

Conflicts:
	lib/utils.lua
[ADD] Some documentation for lib/utils.lua library. (not finished yet)
[ADD] Documentation for lib/utils.lua file
[FIX] Clean up lib/gettext.lua file from useless explanations
[FIX] Problem with ---- length on lib/gettext.lua documentation
[ADD] Documentation for process.lua file
Merge branch 'doc'