Changed CSS to add support of evaluation of multiple forms.

And moved code a bit.
Changed CSS tests to add support for multiple forms evaluation.
Merged master changes
Changed some system code, moved tests to separate package

FIXED:
* Added missing ~% in formatting modes tests
* Changed :defsystem-depends-on to :depends-on

NEW:
* Added SANITIZE to CL-HCTSMSL package export list
1.6

FIXED:
- Added missing ~% in formatting modes tests

CHANGES:
- Changed some tags default formatting modes
- Moved tests code to separate package

NEW:
- Added support for multiple CSS forms evaluation