* Showing milestones on collapsed project rows

* Showing milestone's labels on hover

* Milestones adapting to zoom changes + refactor

* Refactor to make it applicable to other wp types

* Calculate timeline width including wps shown in collapsed rows

* Tests

* Custom labels for duplicated cells

* Custom labels for duplicated cells

* Hide empty labels on hover

* All tests passing (switched to isMilestone function)

* Make up

* Showing milestones on collapsed project rows

* Showing milestone's labels on hover

* Milestones adapting to zoom changes + refactor

* Refactor to make it applicable to other wp types

* Calculate timeline width including wps shown in collapsed rows

* Tests

* Custom labels for duplicated cells

* Custom labels for duplicated cells

* Hide empty labels on hover

* All tests passing (switched to isMilestone function)

* Make up

* Refactor fix

* Empty line at the end of the file

* Empty line at the end of the file

* Hide non hover labels on group rows

* Only include header cells for wp with date or startDate

* Add group header cells into Autozoom width calculations

* Showing labels on group headers

* LabelRight's padding reduced

* group-row class name changed to modifier -group-row

* withCustomLabels moved to WorkPackageCellLabels class

* withCustomLabels renamed to withAlternativeLabels

* isDuplicatedCell and withAlternativeLabels moved into RenderInfo

* Typings improvements

* Duplicated code extracted to getWorkPackagesToCalculateTimelineWidthFrom

* Conditional flag moved out of manageCollapsedGroupHeaderCells

* manageCollapsedGroupHeaderCells setup extracted to a method

* manageCollapsedGroupHeaderCells setup extracted to a method

* manageCollapsedGroupHeaderCells setup extracted to a method

* Group logic extrated to groupTypeFromIdentifier and groupIdFromIdentifier methods

* Remove 'project' hardcoded reference from createCollapsedGroupHeaderCells

* Common pipes grouped in a getter

* Codeclimate fixes