add support for specifying a charset
Merge branch 'master' into support_charset

Conflicts:
	src/groovy/grails/plugin/aws/ses/SendSesMail.groovy
update plugin issueManagement url
update documentation url to be https
add unit tests for charset usage in buildSimpleMessage()
doc charset closure parameter
Merge branch 'support_charset'
update readme sections
remove changelong and contributions from help
remove FAQ, Roadmap, and Contact sections from help
Merge branch 'master' into gh-pages