add post module based on @zeroSteiner idea
@Meatballs1 fixes
two more tweaks
make MSF_MODULES a constant
Merge pull request #7 from jvazquez-r7/review_3388

make MSF_MODULES a constant
Add Wordpress XML-RPC Login Scanner

  This module attempts to authenticate against a Wordpress-site (via
  XMLRPC) using username and password combinations indicated by the
  USER_FILE, PASS_FILE, and USERPASS_FILE options.

  The module, checks for XMLRPC response using `demo.sayHello` function
  and sweeps users with `wp.getUsers` function.

  If `verbose` is set `true`, the raw XML response will be printed.

  The module might be usefull when the target's administration page
  is protected.
Added Fixes mentioned by jhart-r7

Details:
* res && res.body fix
  * empty return removed
* vprint added/changed
* is_? convention fixed
* Unknown error removed
* Minor styling issues are fixed
* VERBOSE Option Removed
Empty line fix

Details:
* Empty line fix added to each_user_pass function
Fix gettelnet usability
Added Fixes mentioned by Firefart

Details:
* string interpolation removed
* Minor styling issues are fixed
  * peer var used
* target_uri added instead of datastore
Added Fixes#2 mentioned by Firefart

Details:
* MSF's HTTP::Wordpress class included and wordpress related
variables are used.
Add specs for Rex::MIME::Encoding
Add specs for Rex::MIME::Header
Add specs for Rex::MIME::Part
Add first specs for Rex::MIME::Message
Add specs for add_part and add_part_attachment
Add specs for add_part_inline_attachment
Add some Message specs
Fix Rex::MIME::Header#parse
Fix Rex::MIME::Message#initialize boundaries parsing