Started adding points tracker.
Added point list.
Fixing database access.
Fixed versions.
Started add in app purchases.
Fixed in app purchases.
Used async task to know price.
Used async task to check purchase. Added logging.
Merge branch 'master' into pointstracker

Conflicts:
	.idea/libraries/appcompat_v7_20_0_0.xml
	.idea/libraries/gridlayout_v7_18_0_0.xml
	.idea/libraries/support_v4_20_0_0.xml
	PPCalc.iml
	PPCalc/PPCalc-PPCalc.iml
	PPCalc/src/main/AndroidManifest.xml
	PPCalc/src/main/java/cat/company/ppcalc/PointsCalculatorActivity.java
	PPCalc/src/main/res/values/strings.xml
Merged from main.
Add new point working.
Add delete item from list.
Fixed dates in list. Show only current date points.
Changed navigation.
Fixed drawer.
Added files.
Added total points in tracker.
Progress bar working.
Beta published.
Added simple point tracker. Fixed some minor bugs.