CARROT-1064: Update jflex to 1.5.1 (stable).
CARROT-1064: grammar syntax fix resulting from different interpretation of \n.
CARROT-1063: Use proper tool registration info for pubmed document source.
Add toString() to ResourceLookup
CARROT-1066: Support alternate lexical resource locations (dcs config override only).
Sysout removed.
Merge branch 'bugfix/3.9.x'
Don't discard existing buffers in MCA.