[#5] Improve look and feel

Classes of ui-bootstrap used in existing pages to improve look.
UI-notifications added.
[#5] Improve look and feel

Directive for displaying ui-notifications on chosen events added.
[#5] Improve look and feel

Language support added for missing elements (menu, dashboard page, etc.).
[#5] Improve look and feel

Not needed code removed.
Merge pull request #6 from m-wrona/base-5

[#5] Improve look and feel