Added a custom point renderer

This allows us to draw points at arbitrary sizes.
Merge branch 'master' of https://github.com/feerrenrut/windcast into addCustomVertices
Merge branch 'master' of https://github.com/feerrenrut/windcast into addCustomVertices
custom point renderer now shows an arrow image at each data location.
image is rotated to point in the direction that the wind is going
fix crash on tablet

Removed fragment that was not being developed for. This was being used for devices with large resolutions.
fix crash on tablet

deleted actual fragment file. When we support tablets, I dont think we will use this design.
Merge pull request #6 from feerrenrut/rt_fixdupWeatherStations

Fixed duplicate stations in station list
Merge pull request #5 from feerrenrut/rt_fixTabletCrash

Fix tablet crash
Merge pull request #4 from feerrenrut/addCustomVertices

Add custom vertices
fix for graphs

Where stations have less than 11 datapoints, the graph is unable to draw. This is fixed by setting the min / max index to graph based on the number of data points
Merge pull request #8 from feerrenrut/rt_fixGraphNotShowingForSomeStations

fix for graphs not showing for some stations
review actions
change m_ to m
Merge pull request #9 from feerrenrut/rt_addCustomVertices_reviewActions

review actions for add custom vertices
Fix issue causing arrows not to be shown
Merge pull request #10 from feerrenrut/rt_addCustomVertices_reviewActions

Fix issue causing arrows not to be shown
Merge remote-tracking branch 'origin/master' into rt_StationsFromAllStates

Conflicts:
	app/src/main/java/com/feer/windcast/WeatherDataCache.java
	app/src/main/java/com/feer/windcast/WeatherStationFragment.java
Merge remote-tracking branch 'origin/master' into rt_StationsFromAllStates

Conflicts:
	app/src/main/java/com/feer/windcast/WeatherDataCache.java
	app/src/main/java/com/feer/windcast/WeatherStationFragment.java