fixed inventory activity and made some changes

fetches inventory from server for user but still looks ugly. Will have
to move to fragments sooner rather than later.
refactored some activities into fragments
RIP pet, inventory,mng account, nickname activities
use resource strings for tab titles
removed loginask from createaccountactivity
nickname
completed nickname fragment for renaming
http get for pet info
picasso image loader
Merge pull request #38 from 3olcin/master

nickname dialogfragment and pet fragment
Created NFC activity and Adjusted Inventory Frag
rename fragment httppost
Merge pull request #39 from bahaa360/master

Created NFC activity and Adjusted Inventory Frag
rename handler for dismissing dialogfragment
Merge pull request #40 from 3olcin/master

dialogfragment
Initial work for Popup menu for Inventory
Merge pull request #41 from bahaa360/master

Initial work for Popup menu for Inventory
Update README.md
added popup menu for inventory
set up code for popup menu