Fixed:

1. SIMILAR TO expression can hang server
2. Size of mapping shared memory increased to 4MB to avoid error "Global mapping memory overflow".
3. Update prefix in installer scripts during installation

Improvements:

1. Implemented CSV adapter for external tables
2. Frontported left->inner conversion for joins

Ported from Firebird:

1. This should fix double close of srcBlob if extBlob->close() failed
2. This should fix broken LRU pending chain
3. Fixed bug CORE-6150 : Bugcheck when PK\UK\FK constraint check read record already marked as damaged