implement init view on tariff settings screen
fix date picker
implement save date
fix date reading
Merge branch 'settings'

Conflicts:
	src/com/devindi/traffic/data/DataManager.java
Merge branch 'settings'

Conflicts:
	src/com/devindi/traffic/data/DataManager.java
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#	modified:   res/layout/activity_tariff.xml
#	modified:   src/com/devindi/traffic/activity/TariffSettingsActivity.java
#	modified:   src/com/devindi/traffic/data/DataManager.java
#	modified:   src/com/devindi/traffic/dialog/DatePickerDialogFragment.java
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#	modified:   .idea/copyright/profiles_settings.xml
#	modified:   .idea/libraries/android_support_v4.xml
#	modified:   .idea/vcs.xml
#	modified:   src/com/devindi/traffic/data/DataManager.java
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fix date view