Refactor minimap views, performance improvement. Thanks to @abe33

0.3.0 / 2014-03-31

• add minimap-wrapper container, wrapped minimap-editor and minimap-overlayer
• add with-minimap css class to pane, #16
• responsive support for minimap and tweaks css styles
• minimap-overlayer displayed by default, #25
• add test cases, #28
• refactor minimap views, #32
• feature minimap partial update, performance improvement #35
• subscribe screen-lines-changed of editor and syncing