Update misc.msa to add /nextrestart

Fixes https://github.com/NerdNu/NerdBugs/issues/128

requires 

store_value('time'.'key', round(expr(nano_time() * pow(10, -9))))

to be added to main.ms
Merge pull request #7 from tompreuss/master

Add CH command /nextrestart

Nice one, Tom. Also, check out /seen. :)