v0.1.1

Changes #39

• Add german translations
• Change reordered loading of locales to be conditional
• Change admin menu item of custom message settings to be highlighted when selected

Contributor of this change: @liaham

v0.1.0

• Fix "Infinite loop occurs in the process of calling I18n.available_locales"(Redmine 4.1 compatible)
• Add a feature to show default messages
• and Clean up code.