add block to handle shelding
Add features search and related implementation. Need to build test
search implementation
Merge branch 'searchImpl' of https://github.com/usc-588/application-smart-recommendation into searchImpl

Conflicts:
	SmartRecomm.xcodeproj/project.pbxproj
delete useless mapController
Add database impl
Add constant variable file reference
Database init restaurant implementation
add class dealing map search
Finish search with keyword, features, area
Merge pull request #7 from usc-588/AdvanceImpl

Database & Search implementation
Remove plist
search bar
Merge branch 'display_detail' of https://github.com/usc-588/application-smart-recommendation into display_detail

Conflicts:
	SmartRecomm.xcodeproj/project.pbxproj
	SmartRecomm/SmartRecomm.storyboard
solve conflict in project
Merge branch 'master' into Storyboard

Conflicts:
	SmartRecomm.xcodeproj/project.pbxproj
	SmartRecomm/RestaurantList.plist
	SmartRecomm/SmartRecomm.storyboard
	SmartRecomm/mainViewController.m