edited Timestamp save method
Debugged in_out error handling with exception passed from custom clean method of Timestamp editing form.
Added custom form class with custom clean to check for in_out stamp consistency and raise error if needed. Changed TimestampForm and Edit TimestampForm to subclass from new class(StampMixin)
Fixed lack of employee selector in form when user is a Manager.
Added clock in/out link to manager_home.html so managers can clock in and out as well.
Added link to punch_clock.html so the managers can clock in.
Docstrings added for app_timeclock.forms. Added NoUserTimestampForm. Refactored StampMixin.
In app_timeclock.views: Added vw_edit_timestamp, dicstring for vw_punch_clock. Error handling for vw_punch_clock.
Rename EditEmployeeForm to EmployeeInfoForm. Refactored same form to fix custom class_textwidget.
Added edit_employee method to Employee model.
Added url for vw_edit_employee
Added quick clock in/out form to generic home page. Re-added vw_edit_employee and refactored for current version.
Changes to ordering for TimestampAdmin and TimestampEditsAdmin for reverse ordering.