chanserv: Always move on to the next nick in case of an error in /cs op etc.

Fixes #399
chanserv: Tell the user who they failed to op/voice if they don't have enough privs
Merge pull request #401 from attilamolnar/master+csop

chanserv: Always move on to the next nick in case of an error in /cs op etc.
chanserv/topicswap: better parameter checks to avoid crash

Fixes atheme/atheme#400.
Create topicswap

Added helpfile
Merge pull request #403 from thomasdubell/master

Create topicswap
Update topicswap

stupid typo
Merge pull request #404 from thomasdubell/master

Update topicswap
atheme 7.2.1.
Discontinuation notices
README correction
Merge pull request #405 from Argure/master

Discontinuation notices