add functionality to grab struchk errors from the log
attempt backwards compatibility in cairo
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'
update docs
Fixes #207
Fixes #208
doc update
- fixed a weakness in the angular restraint code which misbehaved
  in case ranges involving negative angles were given as input
get ready for next release
remove a compiler warning
Merge pull request #261 from ptosco/master

Fixed a weakness in the angular restraint code
Merge remote-tracking branch 'origin/master'
add test for bond iterators
add getFullDescription() to Query;
Fixes #287
Fixes #266
Fixes #269
Fixes #270
Fixes #268