mysql_db: Fix error message for #6214

Correct regex in is_keyid

Fixed tracebacks during VM creation. Fixes #8067.

The `rpm_key` module claims to take a key ID as an argument, however it fails if one is actually given:

    msg: Not a valid key DEADBEEF

The reason for this is the regular expression in the `RpmKey.is_keyid` method is incorrect; it will only match the literal string "0-9a-f" exactly 8 times, rather than exactly 8 characters in the set 0-9 or a-f.

Added exception handling to database creation and deletion. Fixes #8075.

Switched primary and alias names of the name/db parameter. Fixes #8065.

Fixed tracebacks when datacenter not found, when notes not given, and when collecting facts after VM creation. Fixes #8067.

Adding a Collins inventory script for Ansible

Remove unused code

Bug Fix - fixed the choices typo got the ec2_asg module

Regexes were being parsed like ordinary ansible host patterns, so
square-bracket groups were getting interpolated wrongly.

Makes ansible fail if login_port is defined and login_host is either not...

Makes ansible fail if login_port is defined and login_host is either not defined, or defined as localhost. This is because if login_host is localhost then MySQLdb will use the socket instead of TCP. This leads to confusion for ansible users as, when a port is defined it gets ignored if login_host is localhost. This is to fix the bug reported by wrosario #8070. Info on MysqlDb can be read here http://mysql-python.sourceforge.net/MySQLdb.html

Add option to return all EC2/RDS instances regardless of state.