Merge branch 'release/0.4' into develop

* release/0.4:
  updates CHANGES
fixes templatetag
bump 0.5
Merge branch 'release/0.5'

* release/0.5:
  bump 0.5
  fixes templatetag
Merge branch 'release/0.5' into develop

* release/0.5:
  bump 0.5
fixes tempaltetags
bump 0.6
Merge branch 'release/0.6'

* release/0.6:
  bump 0.6
  fixes tempaltetags
Merge branch 'release/0.6' into develop

* release/0.6:
  bump 0.6
fixes version comparison
bump 0.7
Merge branch 'release/0.7'

* release/0.7:
  bump 0.7
  fixes version comparison
Merge branch 'release/0.7' into develop

* release/0.7:
  bump 0.7
bump 0.7
Merge branch 'release/0.7'

* release/0.7:
  bump 0.7
Merge branch 'release/0.7' into develop

* release/0.7:
  bump 0.7
some tests and pep8
start 0.8 alpha
new view changelog
bump 0.8