-- add bitvector::getBit as the opposite of setBit (requested by Suprio Ray)

git-svn-id: https://codeforge.lbl.gov/anonscm/fastbit/trunk@627 9ec3b2dc-5744-0410-9993-b8723341f1db
-- check for empty fills in bitwise logical operations (to address a problem reported by Srikanth Sundarrajan)

git-svn-id: https://codeforge.lbl.gov/anonscm/fastbit/trunk@628 9ec3b2dc-5744-0410-9993-b8723341f1db
-- add functions ibis::bitvector64::getBit, ibis::query::getCandidateVector and ibis::query::getCandidateRows

git-svn-id: https://codeforge.lbl.gov/anonscm/fastbit/trunk@629 9ec3b2dc-5744-0410-9993-b8723341f1db