Same styling for "Limit Summary" and "Usage Summary"

"Usage Summary" as heading instead of "Select a month.."

Submit button styling is changed.

Change-Id: Ie19e8fd16a4db11a67267513cef82ad9e0c41c29
Closes-Bug: #1100830
Don't reset LOCAL_PATH if it's already set

If LOCAL_PATH is set in local_settings, then settings should
not override it, even if SECRET_KEY is unset.

Change-Id: I6aca03f65afddffb6cdd00e4084a8ab9b2255ef1
Closes-Bug: #1254694
Merge "Don't reset LOCAL_PATH if it's already set"
Merge "Same styling for "Limit Summary" and "Usage Summary""