Support casting "true" and "false"

... in a case-insensitive manner.
Simplify test cases
Update CHANGELOG.md
Update the documentation
Add specs for abstract filters
Add specs for filters that don't match the name
Extract input processing into private method
Disable HandleException cop globally
Bump the max class length to 110

Just like 3ce2865, this needs to be fixed.
Merge branch 'v0.10.0'

Conflicts:
	CHANGELOG.md
Version bump to 0.10.0