Collect additional data

Screen size, total and free external and internal space.
Merge pull request #35 from TeamWhat/collect

Collect additional data
Add sent flag
Unfinished sent flag things
Sent flag works now
Merge pull request #36 from TeamWhat/sent

Sent
Comments and removing useless stuff
Merge pull request #37 from TeamWhat/comment

Comments and removing useless stuff
Add settings screen on first launch
Add separate first launch activity with it's own about and settings
Finish first time settings
Add data send counter
Data sent counter to count
Finish first time settings
Merge pull request #34 from TeamWhat/first_time

Add settings screen on first launch
Basic bacground collection started and working
Add datasending interval from preferences
Add connectionChangeReceiver
Add ConnectivityChangeReceiver
Start intentToStop null fix