Show an alert when the cluster is reserved for experiments. Fixes #186
Different message states depending on when myria is reserved
Better error messages
main.js: fixup messages

Spacing after strong and period.

Add the phrase 'for a research experiment'... want to tell users
something about why.

Remove the 'in' as it does not make English sense. E.g., 'will be
available in a day from now'. Should be "will be available a day from
now".
Merge pull request #215 from uwescience/calendar-warn

Show an alert when the cluster is reserved for experiments. Fixes #186