used new layout in checkin view
modify the index view and css
#347 add EventSummary model
#347 add ability to create/update event summary
#347 add event summary page link to menu
#349 show event summary on event show page
#347 add feature test
#349 show previous event summary on a unfinished event page
#347 Modify LOC spec, only counting Ruby&JS code now
[#355] add BaiduMap preview in new/edit event page
#355 Refactor move inline javacript to external js file
#355 Display baidu map on event show page
#355 add initializers file for baidu map, make it posoible for user to enable/disable baidu map throught config key
#355 add access key request link in initializer file
#355 Refactor code. move baidumap_ak from initializers to settings.yml; debounce updateMap function
list, add and destroy collaborators.
collaborator can create and update event.
use cancan ability.
Merge branch 'new_layout_by_checkin_view' of github.com:ywjno/19wu into ywjno-new_layout_by_checkin_view
Merge pull request #363 from loveky/issue#355

Issue#355 根据活动地址显示百度地图