added phing (test/phpdoc) output dirs to .gitignore
Add grid question, update edit questionnaire (preview) & single choice answe
    * update edit questionnaire: layout changes (add page, add question to bette
    * update edit questionnaire: add grid question (likert)
    * add grid question (loosely based on single choice question), currently lik
    * update answer choice tab (single question), now in line with code