Revert "netteForms.js: getAttribute() returns empty string in old browser when the attribute does not exist [Closes #1193]"

This reverts commit 30ac03adaca535a13b261f42c5bea85846bef097.
phpDoc typo
Fixed annotation of getSession method
tests: fixed arguments processing in run-tests.sh

The 'seq' is a command, not a shell internal, and can be missing (e.g. Cygwin).

And old behaviour was wrong. The 'shift' in '-c' and '-j' blocks should move the $i counter. Otherwise some argumens can change the position.

Note: There exists shorter $i-- expressions, but compatibility won.
Debugger: error panel: fixed delimiter in error message [Closes #1207]
DateTime: use static instead of self
Database: added missing ILIKE keyword [closes #1240]
Database: added INTERVAL keyword [closes #1221]
Forms: added validators NOT_EQUAL & BLANK
Latte: security fix for escaping inside <script>, prevents "Script data escape start state"

http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#script-data-escape-start-state