Add API to anonymize SQL quoted literals and numbers from statements.
Extract backend interface and network implementation, add more documentation and tests.
Improve and update documentation.
[PROF-103] Add support for collecting layer profiling data.
[PROF-103] Fix layer detection and profiling.
[PROF-103] Avoid integers.
Merge branch 'master' into error-reporting

Conflicts:
	src/main/QafooLabs/Profiler.php