updating php version requirements. from 5.2 to 5.2.6

admin theme css review

updating readme

spanish translation of publish information.

code refactoring

fixing issue with term criteria in search engine

removing trailing space

fixing cakePHP core defect. #1884

New 'vocabulary' criteria added to the search engine.

missing comment markItUp js locale files

Help file for Node module.

fixing previous commit error: variable references on hook().

- code & comments refactoring.

Commenting code for Fieldable behavior

help documentation for modules: comment, field & menu