Added upgrade for plone.app.querystring which adds new fields and operations
cleanup
Plone 5 upgrade: Respect previous installed plone.app.event when migrating first_weekday setting.
Add empty upgrade step for 5.0a2
Fixed merging issues
Merge pull request #17 from ichim-david/master

Added upgrade for plone.app.querystring which adds new fields and operations
Revert "Merge pull request #17 from ichim-david/master"

This reverts commit d9cc7536841ee6ef2c7640dbaaf1294b6bc4fb76, reversing
changes made to e43e0c5a7eedc2dcb1e9f8ec77597cc6396ce534.
Revert "Revert "Merge pull request #17 from ichim-david/master""

This reverts commit e0af10a83e3bd359e13738f97dc4e86b4f1c8139.
Merge branch 'master' into plip-13260-step_by_step