Now the start and deadline date of task units by default are today
Merge pull request #13 from jespino/bugfix-unit-task-dates-to-today

Now the start and deadline date of task units by default are today
New command to get students marks
Improve KQ saving process to remove cb nigthmare

Improved using async, make the code easier to read.
Merge branch 'master' into feature-peerreview