Modified merge to better conform to existing S3 generic
Some doc fixes, consolidated some dbops.R code
Improved S3 and S4 method definitions
Added sort prototype; fixed bug in scidbeval
More fixes in scidb sort; changed .scidb_MAX_DIM to 4611686018427387902 since 4611686018427387903 is reserved to be '*'
Improved length calculation for arrays with int64 dimensions; improved sort
Improved project syntax; it now takes a character vector of attribute names to project onto
Fixed name collision issue introduced by new GEMM multiply; the tests are now running correctly