make Haketilo buildable again (for Mozilla)
How cool it is to throw away 5755 lines of code...
add new root content script
add a mapping/resources installation dialog
make blocking rules queryable in pattern tree just as mappings are
utilize Pattern Tree to decide the policy to use and modify HTTP response headers according to that policy
This commit also enhances the build script so that preprocessor conditionals can now use operators '&&' and '||'. The features being developed are not yet included in the actual Haketilo build....
facilitate egistering dynamic content scripts with mappings data