added .DS_Store to gitignore
removed unwatend variables from sensor
save user when registering
refacotored
web socket service only in login
parcelable User and Sensor
use parcelable sensor in SensorDetailsActivity
refactored sensor details
phone no istead of username
sharing list
read contacts
sharing list
friend list
search with popup
removed search popup
friend list circle shape
navigate to share after friend list item click
close search after done
searchable list
refactored code