[TASK] Set version number to 1.0.2-dev

Currently the version number of EXT:smoothmigration in this git-repository is 1.0.0 - the most current version number of EXT:smoothmigration in TER is 1.0.1.

The release date of the TER version of EXT:smoothmigration is March 26, 2014 - the most current commit of EXT:smoothmigration in this git repository is August 21, 2014.

Would it make sense to set the version number to 1.0.2-dev?