[tests] rename .hpp to *.h for consistency

Support 'tagged "foo"' without '=' in grammar

Add attrs function to event

Simplify use of instrumentation

Get ready for release 0.1.2

Update README.md

Update CHANGELOG.md

Add background to README.md

Remove unused parameters and variables

Add -Wextra to compiling options

Fix sign warnings in ASSERT_EQ

Update CHANGELOG.md

Update README.md

Add throw/catch in namespaces and streams

Merge pull request #59 from juruen/reload-modules