[xmlunit/xmlunit] f0b806: Allow attributes to be ignored during comparison

[GitHub <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/xmlunit/xmlunit
  Commit: f0b8063f3b23d92eaf4f9d136f0fc1ba57e2b97f
      https://github.com/xmlunit/xmlunit/commit/f0b8063f3b23d92eaf4f9d136f0fc1ba57e2b97f
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2015-11-08 (Sun, 08 Nov 2015)

  Changed paths:
    M HELP_WANTED.md
    M xmlunit-core/src/main/java/org/xmlunit/diff/AbstractDifferenceEngine.java
    M xmlunit-core/src/main/java/org/xmlunit/diff/DOMDifferenceEngine.java
    M xmlunit-core/src/main/java/org/xmlunit/diff/DifferenceEngine.java
    M xmlunit-core/src/test/java/org/xmlunit/diff/AbstractDifferenceEngineTest.java
    M xmlunit-core/src/test/java/org/xmlunit/diff/DOMDifferenceEngineTest.java

  Log Message:
  -----------
  Allow attributes to be ignored during comparison

This is the infrastructure for #2 and will need to be propagated to the
builders and matchers.