fixed the estimate and actual text field box locations
some gui changes added in shortcut keys for cancel and delete, added a split pane for the requirement view
resolved conflicts
created a new panel for status/priority/estimate/actual
moved error message
changed backgorund colors of cmbboxes
Fixed the header of the tab from Requirement Id to Requirement title.
A Requirement can also only be open in one tab at a time.

Signed-off-by: Tushar Narayan <tusharnarayan@gmail.com>
Fixed case of when the title of two requirements is the same: check is now done by a combination of the title and id.

Signed-off-by: Tushar Narayan <tusharnarayan@gmail.com>
Merge branch 'team1-gui-adjustments' into team1-dev