PolicyActivityのレイアウトを作りました。
activity_mainを少々記述。なお、途中。
Merge remote-tracking branch 'origin/feature-#4'

Conflicts:
	res/layout/activity_ride.xml
	src/jp/co/bequem/rakunori/RidingActivity.java
Merge remote-tracking branch 'origin/feature-#5'
Merge remote-tracking branch 'origin/master' into feature-#3

Conflicts:
	src/jp/co/bequem/rakunori/RidingActivity.java