This doesn't exist anymore and causes ansible to throw a KeyError

Upon a second run, the default egress rule will be removed when a
vpc is specified but no other egress rules were set. This patch
corrects that behavior by removing the default egress rule from the
list of unmatched outbound rules.

Fixes #7309

Make sure dwim'd relative path ends in a "/" if the original does

Minor typo fix

Fixes #7308

Fixes #7307

Remove 'python-apt' before testing the 'apt_repository' module.  The
'apt_repository' module has the smarts to auto-install python-apt.  The
integration test will now assert the correct auto-install behavior.

Fixes #7307

Add integration tests for group_by module. Fixed bug introduced by ansible/ansible#7273 while also fixing issue described in ansible/ansible#6953

Fixes #7296

[get_url] check against lowered stripped sha256sum

The content of the sha256sum attribute should be lowered before comparing it with the calculated sha256sum.

In the following example the used sha256sum uses ABC.. and not abc.. and the check failed. This should not happen.

```
TASK: [get_url url=http://ftp.fau.de/apache/hadoop/common/hadoop-2.4.0/hadoop-2.4.0.tar.gz dest=/home/vagrant/hadoop-2.4.0.tar.gz mode=0644 sha256sum=024326AC68A1A68B5566B10F95609EAAFD9F70CFEB37FCA0E97CBB1674E57C3A] ***
failed: [instance000] => {"failed": true}
msg: The SHA-256 checksum for /home/vagrant/hadoop-2.4.0.tar.gz did not match 024326AC68A1A68B5566B10F95609EAAFD9F70CFEB37FCA0E97CBB1674E57C3A; it was 024326ac68a1a68b5566b10f95609eaafd9f70cfeb37fca0e97cbb1674e57c3a.

FATAL: all hosts have already failed -- aborting
```

Fixes #7295

Fix sync_binlog name in mysql_variables example

Merge branch 'fixing_apache2_module' of https://github.com/berendt/ansible into berendt-fixing_apache2_module

The previous sync_binary_log is not a real MySQL variable.

ignore remnants from doing a setup.py install

* the current state of the ELB was not reflected properly when checking
  the status after a change was made.
* invalid zones caused a traceback when enabling/disabling zones

Fixes #7270

Docker inventory bugfix for potential traceback

fixes #7107

fixed typos found by RETF rules in RST files

rules are avaialble at https://en.wikipedia.org/wiki/Wikipedia:AutoWikiBrowser/Typos

Also adds an integration test for the above.

Fixes #7254

Fixes #7256