Add mime-type detection to SelectorReplayDispatcher,
Implement SimpleMimeTypeDetector (experimental, needs more tests with real-workd examples).
FIX fails to recognize MIDI-magic
add FLV and LZH magics.
precompile regular expressions.
add main() to SimpleMimeTypeDetectorTest for mass-test
(work-in-progress)
SimpleMimeTypeDetector: Reorganize code. Add a few more text patterns and several binary MAGICs. Make sniff-length and charset detector configurable.
Add untrustfulMimeTypes property for configuring the list of mime-types that triggers mime-type detection.
Support mime-type detection for record with Content-Encoding: gzip
mimetype detection: make “missing” mimetype value configurable - Java Indexer generates “application/http” instead of “unk”.
Merge branch 'ARI-3822' into ait-qa

Conflicts:
	wayback-core/src/main/java/org/archive/wayback/replay/SelectorReplayDispatcher.java