* [i18n] Update missing string for Occitan
According to I18n standardization #2138 this string was missing.
Took the most used translation for "to clear" from Firefox, escafar.
And «cache» like in French and English.
Tell me know if other strings are missing
* Removal of the comment
Comment removed - comentari tirat - commentaire retiré
* i18n Admin standardization
cz - moved items incorrectly placed in system array to extensions array
nl - remove registration array in user array that doesn't appear in any other translations - possibly from an old version that didn't get removed?
oc - reordered list to standardize order with other translation files.
* Alphabetize extensions Array
* Standardize conf.php
he - removed options not appearing in other i18n files, added missing strings
* Standardize feedback.php
he - removed line not found in other translation files
nl - removed line not found in other translation files
* Standardize gen.php
* Standardize index.php
Major sorting of oc.
Added tags to several languages
* Standardize install.php
ru - added missing strings
it - remove extra string not found in other config files
he - add missing strings, remove strings not found in other languages
oc - reorganize
* Standardize sub.php
* Standardize and fix TODOs
use format "//TODO - Translation" for easier searching
* Fix whitespace
Alexandre Alapetite
Quentí
Patrick Crandol