Lots of updates!

• Added pdbhphob
• Added problem example to checkpdb
• Added pdbline
• Added 1zeh test example for pdbsymm
• pdb2pir - valgrind clean
• Various fixes for GCC V8 which finds some possible buffer overflows
• Added pdbfindnearres
• pdbgetresidues: fix to array boundary
• pdbgetzone: -f with -v now forces extraction even if residues are not found
• Added -v option to pdbchain
• scorecons: Fixed bug in not reading specified matrix
• Added rangecontacts
• Updated to require bioplib V3.11