Processing and execution system

Various upgrades were made to the proposal processing and execution system. The email notification system now informs the PIs of the grading of the proposal, and a separate email provides instructions how to proceed for the execution phase. The on-line documentation about the creation of Observing Blocks was updated to allow the use of standard sequencer scripts for ALFOSC, FIES or NOTCAM calibrations. The transparency to the observers of the web interface used to plan and execute observations was improved.