Put global functions into (write protected?) tables

[trentgill]

time should be in util.time
tell should be crow.tell or util.tell

there's all the C functions (including those 2 above) in libCrow: https://github.com/monome/crow/blob/master/lib/lualink.c#L448

Plus all the functions that are defined in crowlib https://github.com/monome/crow/blob/master/lua/crowlib.lua

[pq]

lots of global write-protection discussion over on norns... maybe monome/norns#667 is useful?

[tehn]

luckily LVM reset happens all of the time with crow, which is good. no attempt to preserve LVM state across scripts.

only a handful of crow things need to be protected, and luckily they are few. would even be sufficient to get them into a table as suggested.

most overwrites will happen by accident, ie time = 3 since that is a common var

[trentgill]

Closing as it's a non-issue in terms of user experience.