Correct BotoServerError typo in ec2 module

Resolves a traceback due to an undefined 'BotoSeverError' exception.
Moved import to the top
Extended distributions list for hostname module

Implementations already present
Fix extra newline at end of hostname for Fedora

This fixes a bug introduced by 138b45e3.
The hostname has an additional newline at the end which leads to the
state always being 'changed: true' even if the hostname is unchanged.
Merge pull request #8307 from robinro/fix-extra-newline

Fix extra newline at end of hostname for Fedora
Merge pull request #8308 from robinro/extend-hostname-distrolist

Extended distributions list for hostname module
Expand variables in configuration files

e.g. $HOME. Fixes #6373.
No hosts matched goes to stderr.
Merge pull request #7968 from bcoca/acl_fix_compare

acl module: now compares permissions correctly
Merge pull request #7969 from dedalusj/devel

Fixed bug with environment path for homebrew_cask
Merge pull request #8262 from icoloma/patch-1

Bugfix: bulletproof unexpected_error_msg at gce.py
Merge pull request #8171 from jbenden/osx-10.10

Support for OS X 10.10 DP3.
Merge pull request #8087 from neersighted/string_version

Fix hostname when get_distribution_version() returns a string.
Merge pull request #8068 from trondhindenes/win_feature_improvements

Updates to the parameters of win_feature
Merge pull request #7954 from alimony/patch-3

cron module: Use correct parameter name in error message.
Merge pull request #7949 from hacosta/apt_key

Check at most 16 characters of the key. Fixes #7936
Taking alternate approach.

Revert "Fix hostname when get_distribution_version() returns a string."

This reverts commit 08f97c0b9d204ac957cc6d491b1ed59231def993.
Merge pull request #7950 from mesk41in/devel

Fix unsupported regexp parameter in assemble
Merge pull request #8244 from wrosario/mysql_user_doc

Update mysql_user doc and example
Merge pull request #8200 from geetotes/devel

[Docs] Added another example to demonstrate unarchive module working entirely on a remote machine