On ( to many, fix compile error
Add common causes for bootstrap failure and diagnostics instructions. This is a very common problem for new users.
Merge pull request #607 from basvandervlies/compiler_error

A( to many, fix compile error
Rename tests in vars/functions/staging to human-readable
Output PolicyError on type mismatch in PromiseRecheckAllConstraints
Fix format specified in PolicyErrorWrite/ToString
Copy constraint offsets in DeRefCopyPromise, ExpandDeRefPromise
popt source drop trail