Add feature to run cron job on demand

Ticket:	#1102
Fix cron job /run API endpoint

Mixin is required to get the cron model object.
Document API endpoint to start cron jon on demand
WIP: Generate config file for ctld
function to test for unix extensions
Hide dot datasets in the navtree
Do not show multipath text in the disks slider

Ticket:	#5085
Add a verb here to make it clear that this is an actual action the user is
selecting.
Always align to 4K boundary when creating partition.

This is just a "stop bleeding" interim bandaid, see the ticket
for details.

Ticket: #5092
Instead of applying a static size for /var (/tmp), make the system
to decide for itself (1/3 of physmem, with TrueOS changes eaef017
and c45710f).