election 7.x-1.0-beta18

This is the 18th beta release of Election version 1.0. It is intended to be used in development and testing, not production.

Significant changes since -beta17:

• You should only be able to add a candidate to a post if you can edit that post. Previously you were able to add candidates if you could create elections. Also clarified other candidate access checks.
• The 'bypass running election lock' permission used to allow update to an election post, without checking update access to the election.