Adding support for A10 Networks slb server, slb service-group, slb virtual-server
PEP8 Compliant except needed long lines and better exception handling
Merge branch 'devel' of https://github.com/mischapeters/ansible into mischapeters-devel
Default fetch_url to use TLSv1 instead of SSLv2/3
A10 module improvements

* moved common code to an module_util snippet
* rewrote logic to make each module idempotent
* added new capabilities like the write_config option
Merge branch 'mischapeters-devel' into devel
CHANGELOG updates for new A10 modules