display map search list and detail.
Merge pull request #26 from usc-588/mapList

display map search list and detail.
Add main view introduction when first load
change image
Merge pull request #27 from usc-588/IntroImpl

Intro impl
Pin/Unpin image. Send Res Class Detail
Merge pull request #28 from usc-588/ResClassDisplay

Pin/Unpin image. Send Res Class Detail
add map intro
Merge remote-tracking branch 'origin/master' into IntroImpl
Search/Preference/Top List background
Merge branch 'ResClassDisplay' of https://github.com/usc-588/application-smart-recommendation into ResClassDisplay

Conflicts:
	SmartRecomm/SmartRecomm.storyboard
map view
Merge remote-tracking branch 'origin/master' into IntroImpl
solve conflict
add map intro, fix db
Merge pull request #30 from usc-588/IntroImpl

Intro impl