[db] moves xml files
[db] typecheck returns object if check passes
[db] updates topology to new split version
[db] adds v4.xml
[db] fixes topology import in parser
Merge branch 'master' of github.com:mrdanbrooks/diarc into sepmodel
[db] allow unsetting of variables
[db] blocks now link back to vertices
[db] visual components of topology only show up at top level if their
ordering parameter has been set
[db] removes unneeded function findBand from topology - the dictionary
does the same thing
[db] updates snaps to only report nbands and pbands they should be
connected to
[db] reverts snap posBand and negband reporting - it should be up to
drawer to get it right
[db] updates comments on Snaps in topology
[db] edits the default model slightly - no syntax changes
[db] comments out debugging print statements in parser
[db] updates asciiplot to draw new topology objects - working!
[db] adds todo into topology
[db] adds ros_topology
Merge branch 'master' of github.com:mrdanbrooks/diarc into sepmodel
Merge branch 'sepmodel' of github.com:mrdanbrooks/diarc into sepmodel