wlw_blogapi 6.x-1.7

Changes since DRUPAL-6--1-6:

• #566418 by bkraegelin: Fixed wrong table in SELECT.
• #371400 by mcload: Fixed Windows Live Writer BlogAPI Error.
  When the server has E_NOTICE turned on every little thing like checking the value of an uninitialized variable throws a notice.

  The is especially harmful when the expected result for the page request is to be parsed by a program that is not very good at ignoring notices that break the expected syntax of the XML it is expecting to receive.

  The module was checking the value of a couple of possibly uninitialized variables in this function and causing notices to be thrown.

  I have changed the function to use the empty() function which

  empty() is the opposite of (boolean) var, except that no warning is generated when the variable is not set.

  FYI - production site should never have E_NOTICE set.

• added a validation hook - hook_wlw_blogapi_user_authenticate to allow third party authenticatin modules that provide Drupal authentication to work with WLW Blogapi.