Fix hyperlink in documentation

Incremented version number to 0.6.2 and added release notes

Change sys.path.append to sys.path.insert in results.py for each test.

Merge branch 'release-0.6.0'

Bumped version number to 0.6.0.

Merge branch 'release-v0.5.4'

Update description of <lattice> in user's guide.

Version 0.5.2

Version 0.5.1

Version 0.5.0