Html2Pdf.php: Add SIP support wkhtmltopdf URLs. Move cookies for wkhtmltopdf from commandline arguments to filebased.

Session.php: introduced close(). This will unlock the current session. Take care on subsequent calls to reopen primary session again.

# Conflicts:
#	mockup/inputmodeswitcher.html

# Conflicts:
#	mockup/inputmodeswitcher.html

Renamed two bat files - makes trouble if they are send by email - will be blocked, even if they are inside of a zip.

Implemented defaultEscapeType. configurable via config.qfq.ini (global) and per Form.
Implemented max GET parameter lenght. Default: 50. BTW: in phpunit test there have been a parameter 'file' which exceeds the limit of 32.

Config.qfq: Skip empty variable names - happens in phpunit tests. Read new `systemEscapeTypeDefault`.
Constants.php: renamed  TOKEN_LDAP_ESCAPE_* to TOKEN_ESCAPE_LDAP_*. Add TOKEN_ESCAPE_MYSQL, TOKEN_ESCAPE_NONE
Database.php: Set charset to real_escape_string() functions properly. Proxy for mysqli::real_escape_string()
Evaluate.php: Respect global escapeTypeDefault. Implement
formEditor.sql: add column `escapeTypeDefault`. Add FormElement 'escapeTypeDefault'.

Manual.rst: small abstract about implemented security enhancements in QFQ.
Sanatize.php: New function urlDecodeArr(). Decode all _GET vars.
AbstractBuildForm.php, BuildFormBootstrap.php: form head now contains the honeypot vars.