added configure and update funcs for hosts module
Removing escape characters from stdout/stderr.

The standard out and error output when coming from Foreman have escape
characters that show colors when displayed in the console. Since these
characters are also being displayed in the console and DEBUG log, they
cause more visual confusion than anything. Exemple:

Before changes:

```
[\x1b[32m INFO\x1b[0m \x1b[34m2014-01-17 14:05:42\x1b[0m \x1b[36mInit\x1b[0m] Initialization of Hammer CLI (0.0.14) has started
```

After changes:

```
[ INFO 2014-01-17 14:05:42 Init] Initialization of Hammer CLI (0.0.14) has started
```
Updated host locators and update func for host modules
Merge pull request #294 from omaciel/remove-escape-characters

Removing escape characters from stdout/stderr.
Add redminebug decorator to create proxy test
Merge pull request #296 from elyezer/master

Add redminebug decorator to create proxy test
select/update template while creating OS
moved helper function from base class
Fixing CLI User tests.

* The User command in foreman does not allow for getting a record's
  information (using the ```info``` argument) using ```--login```, only
  ````---id````. So I have fixed user tests so that ```login``` is used
  for assertions and updates.
* I noticed that data from test modules were getting overriden by the
  default data sets included in
  ```robottelo/cli/metatest/template_methods.py```, so I fixed it as
  well.
* Updated CLI base ```exists``` method to return a
  ```SSHCommandResult``` object instead a single record from Foreman.
* Updated all CLI tests that use ```exists```.
Merge pull request #302 from omaciel/fix-cli-user-tests

Fixing CLI User tests.
fixed pep8 issues
instead of None using kwargs
Merge pull request #295 from kbidarkar/fix-hosts

 	added configure and update funcs for hosts module
merged import statements
Moved URL constant to constant.py and renamed them
moved URL to constant.py
blank line at end of file
Merge pull request #300 from sghai/os-test

select/update template while creating OS