Weather module (new freaure) and additional fixes

+ Fix: Estonian translation issues with search, analytics and login page
+ Tweak: If some field switch value is 'off', then all the related
fileds are also disabled
+ Update: Spanish translation file updated by celu
+ Fix: #54
+ Tweak: added delete icons for account departments and postitions and
categories
+ Applied Fix: Disallow access to member list for user with limited
group access
+ Fix: added company logo remove translation (account/theme)
+ Feature: integrated weather module (mod_sp_weather - Weather Module by
JoomShaper.com)