Removed changelog entries for 0.5.x and prepared the notes for a 1.0.0a1 release
Removed changelog entries for 0.5.x and prepared the notes for a 1.0.0a1 release

samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor,samuelcole/wymeditor