Merge pull request #1477 from mswertz/2014_03_22_data_mysql

mref fix?
Merge pull request #1478 from mswertz/2014_03_22_data_mysql

mref fix?
Merge pull request #1479 from mswertz/2014_03_22_data_mysql

to fix coverage report, update corbetura plugin, supposed to work with 1.7
Merge branch 'master' of https://github.com/molgenis/molgenis into 2014_03_22_data_mysql
Merge pull request #1480 from mswertz/2014_03_22_data_mysql

bugfix: after upload the repositories were not viewable in explorer
Merge branch 'master' of https://github.com/molgenis/molgenis into 2014_03_22_data_mysql
fix Entity [import_city] already registered.