[1.4.0] Added convenient single test selector form on test runner

- Also fixed includes in test files
- Updated TODO with CSS plans

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@659 48356398-32a2-884e-a903-53898d9a118a

TODO

@@ -36,6 +36,8 @@ TODO List
     - Friendly strict handling of <address> (block -> <br>)
 
 2.0 release
+ # Legit token based CSS parsing (will require revamping almost every
+   AttrDef class)
  # Formatters for plaintext (COMPLEX)
     - Auto-paragraphing (be sure to leverage fact that we know when things
       shouldn't be paragraphed, such as lists and tables).