various: Remove IB_HDR_EDIT support and util/regex which never worked. (RNS-706)
Enable doxygen for anonymous namespaces for internal documentation.
example_servers/parsed_c: Cleanup.
ironbeepp/parser_suite_adaptors: Add function to adapt parser suite headers to ParsedHeader.
ironbeepp/tests/test_parser_suite_adaptors.cpp: Minor cleanup.
ironbeepp/parser_suite_adaptors.hpp: Doxygen fixes.
various: Minor doxygen fixes.
xrules: Refactor SetFlag and EnableBlockingMode to make it more clear what is going on.
engine.c: Removing confusing/misleading list element name.
xrules: Test all flag-setting/clearing actions in XRules.
ts plugin: Explain that an unsigned compared to -1 is to protect against TS issue TS-922.
clipp tests: Allow clipp to do negative tests.

That is, allow clipp tests to evaluate and exmaine tests cases in which
clipp does not exit with a status code of zero.
DefaultBlockStatus and BlockingMethod: Fix range check and add clipp tests.
flags set: When flags are initialized in a tx, use the tx-set function provided.
test core actions: Adjust unit test.
ib_tx_flags_set: Use cleaner api to talk to vars. Do not pluck values directly from a tx if we don't have to.
setvar: Apply transformations to setvar arguments.

NOTE: The use of a IB_FTYPE_GENERIC field for expanding text is a little
awkward and should be refactored.
setvar: Fixing dead assignment.
clipp/ibaudit_to_pb.rb: Add initial version of script to convert IronBee audit logs to CLIPP inputs. (RNS-510)
example_servers/unparsed_cpp.cpp: Initial version of unparsed C++ example server.