[PopOver] improved performance and code readability
updated Swordfish to version 0.1.5 `Dragonet`
[css] fixed dark theme for PopOvers
[Hint] improved performance and code readability
updated Swordfish
[Scroller] add class 'scroller' to the main object
[PopOver] many fixes + use of pre-made effects
[Notification] use of pre-made effects
[css] fixed .popover-arrow
increased version to 0.2.3 `Sunburnt Cyclops`
Merge pull request #15 from tsapeta/0.2.x

merge 0.2.x (0.2.3 `Sunburnt Cyclops`)