Set xxlarge class on file type inputs

For text input fields that take large amount
of data (like a full file + path), setting input-xxlarge class
helps with getting a proper display when using bootstrap.
Use consistent order of options in select

Always use true first, then false.
Reword insecure option

Google "self signed": 1.1 million hits
Google "auto signed": 33 000 hits.

Self signed wins.
Merge pull request #109 from dirkmueller/ssl_option_fixes

https://github.com/crowbar/barclamp-keystone/pull/109

Merged by devtool for cloudsleuth