* rename costs, introduce budgets
* move files from costs to budgets
* rename cost_object to budget
* remove unused code
* move hook - should be turned into standard code in the long run
* move type attributes change over to budgets
* move patch to work_package proper
* move budget menu item up
* combine reporting, time and cost module
* remove rails based time_entries & reports code
* rename cost object filter
* adapt menu spec expectations
* use cost project module name in administration
* include timeline labels in migration
* properly place budget linking method
* fix permitted params
* remove outdated routing spec
* adapt budget request specs
* ensure order of descendent updates
* remove outdated specs
* fix checking for reporting to be enabled
* fix displaying spent units
* fix time entries activity event url
* reenable current rate tab
* fix path on budget page
* allow bulk editing of budgets only in one project scenario
* fix sanitizing reference in controller
* include module required for format_date
* fix reference to correct units from work package spent units
* linting
* remove outdated spec
* remove outdated views and permission references
* remove acts_as_event from time_entries
There is no atom link for time entries
* remove acts_as_event from projects
There are no atom links for projects
* introduce budget filter for cost reports
* remove actions added to removed controller
* move time entries to the costs module
* factor in view_own permission when calculating time entry visibility
* linting
* move mounting of time entries
* include budgets into api v3 documentation