[MERGE] Added new features in the user_story module to make easy the user story management, these improvements are: [IMP] Added a priority field in the user story to define the priority level for each user story for ease of handling and delivery [IMP] Added filter to show user story for priority level [IMP] Added automatically project in the task when you create a new task from user story view, this project is the seted in the user story [IMP] Added filter to show user story for state, to ease the user story management [IMP] Added sum in the planned hours field to control, the hours used for each user story, for we can see the progress in any project easily [IMP] Added translations in the user_story module [IMP] Added branch to clone field in the project task module
[MERGE] Merge from trunk to apply pep8 and V7 migrate in all modules