Merge branch 'release/0.4.0' into develop
Added 'Show Original Article' button
Added 'Show Original Article' button also when using  Readability
Mantain the original HTML instead of only the text
Renamed 'Original Article' to 'Article Preview'
Merge branch 'feature/undoButton' into develop
Fix #16
Corrected typo
Increased version number
Last minute fix of action button behavior
Merge branch 'release/0.5.0'