Leg completed, styles implemented

Travelergroup & Location dialogs implemented in LegFragment
Small changes to TripFragment and CostSummary
Styles used where possible
Fixes to Adapters and Time()

ID's for travelers changed from int to long
Time() fixed -- I think...
Changes to LocationDbAdapter and LocationDialog

Probably temporary
Fix opaque color on cost summary

colors.xml only
Merge pull request #14 from nerychapeton/(V5)Leg_updates,styles

(v5)leg updates,styles