Improved form submit section.
Added method setEvent().
Added method setHeader( String, String ).
Added methods remove & clear methods for headers and cookies.
Added setData method.
Added Header classes.
Replaced hardcoded strings with definitions from Header class.
Fixed erroneous return value of setData method.
Merge branch 'master' into develop
Merge branch 'develop' into hotfix-0.3.2.1
Increased version number.
Merge branch 'hotfix-0.3.2.1'