Local CA output links do *not* trigger processing in the same thread;
need to wait for the dest record in Group 3, but not in Group 4.

Remove 2017; fix hour in MET settings

This lets src/cap5 build with Perl installations that lack Perl's
podchecker and pod2html scripts (e.g. Fedora 27).

Now a simply grep for asyn in the build log will show you line by
line which modules depend on which asyn versions.

Previously if you wanted a .boot file it had to be installed.

Cleaned up and reformatted since Dirk's original.

tsFirst needs to get initialized from the first server side
timestamp instead of the client side tsNow.

Previously dbGetString() of a link field would return an empty string
until iocInit was run. I fixed that earlier today, so asTest started
failing because it was checking for the old behavior.

Only return the number of characters that a string field can actually
hold, in case it had a buffer overflow.

Fixes LP: #1747983

Also added some additional static assertions for string field sizes.

Can't use locking dbAccess routines until lock-sets have been calculated.
Fixes LP: #1725248

Fixes LP: #1716998

Fixes LP: #1528314
Affects 3.15 branch only.

The short => int change is a UB issue, the second argument to va_start()
must be of a type that does not undergo promotion. See
https://wiki.sei.cmu.edu/confluence/display/cplusplus/EXP58-CPP.+Pass+an+object+of+the+correct+type+to+va_start