3rd stable release of the pdb-tools

New

• pdb_tidy.py
  Adds TER statements whenever there is a break in residue numbering/chain ids. Adds END statement. (9261029)

Modifications

• pdb_format.py
  Add generic line length check for non ATOM/HETATM/TER/END records (2c7e000, 690f2b5)
• pdb_striphet.py
  Preserve all coordinate section records except HETATM (ae67b6a)
• pdb_linewidth.py
  Removed ATOM/HEATM filtering. Now acts on all lines (7b232d3)
• pdb_fetch.py
  Updated URLs to download PDBs (ba91d75)

Others

• Minor fixes (6842f6d, b138c6c, 227d019)