Open image chooser if cached image doesn't exist

	modified:   java/info/tellmetime/TellmetimeActivity.java
Reset translucent navigation on configuration change

	modified:   java/info/tellmetime/TellmetimeActivity.java
Add sharing screenshots

	modified:   AndroidManifest.xml
	modified:   java/info/tellmetime/TellmetimeActivity.java
	modified:   res/menu/menu.xml
	modified:   res/values/strings.xml
Fix updating widget

	modified:   res/values-hdpi/dimens.xml
	modified:   res/values-sw720dp/dimens.xml
	modified:   res/values-v14/dimens.xml
	modified:   res/values/dimens.xml
Fix not restoring selection for highlight backlight

	modified:   java/info/tellmetime/TellmetimeActivity.java
Don't send highlight color in Intent updating widget

Highlight color is retrieved from preferences

	modified:   java/info/tellmetime/ClockService.java
	modified:   java/info/tellmetime/TellmetimeActivity.java
	modified:   java/info/tellmetime/WidgetProvider.java
Set constants for preference keys

	modified:   java/info/tellmetime/ClockService.java
	modified:   java/info/tellmetime/DaydreamService.java
	modified:   java/info/tellmetime/TellmetimeActivity.java