New lookup plugin csvreader
synchronize: allow ansible_ssh_host to be templated

This is already enabled in the runner also.
Don't modify hgrc when running purge
Allow multiple users to use ec2 inventory scripts

Move the ec2 cache files from a shared /tmp location to the
user's ansible tmp directory.
Fixed false positive on initctl as enable_cmd

Also on update-rc.d
In service module
Fail EC2 inventory better with restricted EC2 users

If a user has full EC2 access but no RDS access, the user
should still be able to query the EC2 inventory, although
will not obtain any information about any RDS instances.
Added prev_state for directory
Added to the file module the functionality to force conversion hard link and symlink when the force attribute is set to 'yes'
Let merge hash_bahaviour work with dynamic inventory
Move more responsibility to common EC2 module

Moved `AWS_REGIONS` into `ec2` module
Created `ec2_connect` method in `ec2` module
Updated modules able to use `ec2_connect` and `AWS_REGIONS`
django_manage need not require virtualenv in PATH

The virtualenv parameter to the django_manage command is used to locate
the virtualenv and build it if necessary.  Access to the virtualenv
executable is only needed if the virtualenv directory doesn't exist and
needs to be built.  This patch allows for the situation where a
virtualenv that is not in the PATH was used to create a virtualenv prior
to running the django_manage module.
bigip_monitor_http: two small bug fixes

- extra properties were not set at creation, only when updating
  which can be overlooked when running the module from more than 1 node...
- fix bas var as time_until_up didn't get used
Fix inventory parsing so that FQDN can be parsed without throwing ssh
port parsing errors
Fixes problesm introduced by 948d019fef8781b22960859caaa93485a074e339
Adds testcases to defend
Display context appropriate help and inform the user they can do '--help
<command>
Add some blank lines in help to add readability
Fixes #5381 easy_install bug when used with virtualenv
Swapped conditions of the changed if statements
Partial fix for #4565. Works only for Debian 7 and later
Fix mysql_db dump and import to use port argument

The code for mysql_db did not pass the port argument when state=dump or
state=import.
Fix a small typo