[Alert] shortened code + improved css
several changes in all modules
update .gitignore
[Magnifier] released module
[SegmentedControl] module was moved to a separate file
[Core] a lot of changes
some fixes
some visual changes
[Core] added "addEventEmitter"
[Core] added "dispatch"
[PopOver] added "overlay" position
[Selectable] a lot of improvements

e.g. added initializer for "select" tag
increased version to 0.5.2 `Spring is Dancing`
Merge pull request #43 from tsapeta/0.5.x

release v0.5.2