Prepping 0.5.3 release.
Merge branch 'release-0.5.3'
Merge branch 'master' into devel
Merge branch 'devel' of github.com:quintusdias/glymur into devel
Prepping 0.5.4 release.
Merge branch 'release-0.5.4'
Merge branch 'master' into devel