* fix(LabellingFlow): Fixes search items
Includes a function to add the items related to root element
fix#508
* fix(LabellingManager): Fixes z-index problem with header menu
Fixes z-index problem with header menu
fix#508
* fix(LabellingFlow): Includes overlay for select tree when open
fix#508
* fix(LabellingManager): Changes backgroud color to highlight the modal text
fix#508
* fix(LabellingFlow): Adjusts relabel position in the page
fix#508
* fix(LabellingFlow): Fixes select tree position and include calculation to put at the center of mouse
fix#508
* fix(LabellingFlow): Fixes autofocus and refresh page after hitting enter
fix#508
* fix(measurements): Add measurement table functions
- Support for labeling measurements and adding measurement description
- Jump to measurement when clicked on measurement table
* fix(layout): Fix the issues with layout when switched with different plugins
* fix(measurements): Support for deleting measurements in measurement table
* fix(measurements): Add context menu for measurements
* fix(dependencies): Bump ohif-core to 0.4.2