Bump copyright year.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Change framework version to 1.2.1.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Update podspec to 1.2.1.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Merge branch 'release/1.2.1' into develop

* release/1.2.1:
  Update podspec to 1.2.1.
  Change framework version to 1.2.1.
  Bump copyright year.
Merge branch 'develop' of https://github.com/rastersize/CDEvents into develop

* 'develop' of https://github.com/rastersize/CDEvents:
  Make properties explicitly strong.
  CDEvent should maintain strong references to its properties.
  Use relative import to allow compiling in other projects.