Merge pull request #348 from robinboening/master

Some minor changes...
Fixes database dump rake task, so it works with special characters in mysql passwords.
Fixes database import cap task, so it works with special characters in mysql passwords.
Removes element description loading from standard set.
Do not memorize page layouts definitions.
Adds a Logger module for better log messages.
Do not raise if element description is missing.

Display a useful error message instead.
Renamed t method into _t, so it does not conflict with I18n.t
Only use translation files from inside the alchemy gem path.
Refactors page status localization.
Refactors page status tooltip.
Adds more documentation to elements.yml template.