Perform minor version bump to rectify PVP violation

The patch-level bump in 60cbe2c6 didn't suffice
to conform to the PVP, as in 3cbb0ec4 a new instance
was defined, therefore at least a minor version bump would have been needed.

By uploading a 0.10.10.0 release, and declaring the 0.10.9.3 release a "non-preferred"
release, everything should be fine again.

changelog

-Changes in version 0.10.9.3
+Changes in version 0.10.10.0
+
+ * Minor version bump to rectify PVP violation occured in 0.10.9.3 release
+
+Changes in version 0.10.9.3 (deprecated)
 
  * Add support for OverloadedLists in GHC >= 7.8
 

vector.cabal

 Name:           vector
-Version:        0.10.9.3
+Version:        0.10.10.0
 -- don't forget to update the changelog file!
 License:        BSD3
 License-File:   LICENSE