CharacterExtractor is dead, long live CharacterExtractor
factors out TableGuesser in favor of computational geometry algorithms; has counterpart in tabula webapp
commiting for backup
almost done with #26
yeah
optimizations
Merge remote-tracking branch 'origin/pre07' into fix-26
unneeded require
unneeded requires
Merge remote-tracking branch 'origin/pre07' into pre07-fix26
Merge remote-tracking branch 'origin/no_tableguesser' into pre07-fix26

Conflicts:
	bin/tabula
optimization
formatting, comments
don't use LineExtractor