Use `get_bin_path` properly for supervisorctl module

Keep result pristine for ignore_errors

Allow ~ expansion in chdir argument of command module

This allows the use of ~ in the chdir argument of the command module
I know the later change is absolutely necessary as the first change
was not sufficient. It may be that the first change fixes shell and
the second fixes command.

Subversion dest should allow ~ expansion

Used os.path.expanduser on dest to allow e.g. ~/svn/repo as
a destination

Jinja2 filter from_json added, to_json renamed

Conflicts:
	library/supervisorctl

Improve apt_repository and supervisorctl

Add seboolean module

add selinux module

Added required as optional argument to get_bin_path(). It defaults to
false.  Updated following modules to use required=True when calling
get_bin_path():  apt_repository, easy_install, group, pip,
supervisorctl, and user.
Also removed _find_supervisorctl() from supervisorctl module and updated
_is_running() to not need it.

Will manage values of seboolean on a host.  Options are name (name of
boolean), state (on or off), and persistent (on or off).  Persistent
defaults to no.

* Migraed easy_install, pip, service, setup, and user.
* Updated fail_json message in apt_repository
* Fixed easy_install to not hardcode location of virtualenv in
  /usr/local/bin/.
* Made handling of virtualenv more consistent between easy_install and
  pip.

The optional list is prepended to PATH.
Fix get_bin_path() to use os.path.join().

This is meant to assist all the modules that look for the full path of
an executable.  If it is found and is X_OK, returns the full path.
Otherwise, it returns None.

Freebsd2

Add a lineinfile module

Invoke cowsay without going through the shell

Signed-off-by: Brian Coca <briancoca+ansible@gmail.com>