traffic shaping re-implemented in order to be compatible with mac80211
fixes migration 20130529171900
adds input/output bandwidth validations
adds missing I18n strings
...actually write the input bandwidth and input bandwidth percent to the underlying "shapeable" entity...
fixes indentation for l2tc_script.
fixes a copy-paste error...
fixes names for input/output bandwidth
fixes missing field names
fixes the order of fields for l2tc* indexes
fixes l2tc validations
fixes l2tc script indentation
removes useless dependencies
Merge pull request #26 from dguerri/master

Traffic shaping re-implemented