implement get direction (hotel, tourist place, restaurant), filter for hotel search page
implement book hotel
fixed issues relative to fetch service
fixed issues in Add activities
recover AbstractFetchAsyncTask and AbstractPushAsyncTask
completed signin feature
Merge branch 'restaurant'

Conflicts:
	SmartTravel/res/values/strings.xml
	SmartTravel/src/com/smarttravel/AbstractBaseActivity.java
merge book hotel feature