Changed calls to fabs() to abs()

Merge branch 'master' of github.com:ACRMGroup/bioplib

Various cleanup for clean compile with -O2 - fixed some potential mem…

…ory errors

Improved blCheckProgName

Added align.c/blFreeMDM()

Documented sequtil.c

Merge branch 'master' of github.com:ACRMGroup/bioplib

rsc handles missing CBeta properly

Removed runtest.sh from pdbsecstr development

blExtractZonePDBAsCopy() fix on check for exact match - prev wasn't b…

…eing set correctly if the match was to the first residue in the file