Made URL an optional parameter
use new airbrake API URL
Optionally unarchive a file already on the remote machine
properly convert arg into boolean
If there is no tmp_src, don't modify the args
apt: fixed pkg=<name>=<version> fails if package is not yet installed.

Reported and patch provided by https://github.com/msolo. Closes GH-5625.
Update docs for rax_facts to include parameters added for other OpenStack clouds
Tell user to make inventory plugin executable

The current version mentions nothing about chmod +x'ing the rax.py file, which means you get a really weird error message when you try to follow it:

```
raise ValueError, "No closing quotation"
```

... from deep inside shlex.py. I'm sure that makes sense if you realized that meant that it was trying to parse `rax.py` as an ini file...
Use finalize method in jinja2 to convert None values to empty strings

Fixes #4812
made accelerate keys directory configurable, and permissions for the file and dir configurable, and gave them a safe default
fixed file perms checking
fixed thinkoes
Fix typo
Allow explict setting of vpc_security_groups to allow modification of security groups of RDS instances within a VPC
Specify mode in the makedirs call for fireball/accelerate keys
Fix broken behavior when removing all auxiliary groups from a user
(e.g. 'groups=' in the user module).
Add some notes on installing on FreeBSD

Could perhaps be expanded with more prose, but this will do for a start.
Fix typos in ISSUE_TEMPLATE.md
Open LOG_LOCK file with FD_CLOEXEC to prevent file descriptor leakage

Fixes #5399
Don't set a default disk_config. Defaulting to 'auto', causes issues with new images