Bump version to 7.0.0.pre1
Preparing for 7.0.0.pre1 release
remove unnecesary call to to_solr
Merge pull request #140 from projecthydra/remove_unnecesary_call

remove unnecesary call to to_solr
Bump AF dependency to 7.0.0.rc1
Preparing for 7.0.0.pre2 release