Mustache: acceptance test for default case and extra debugging
Redmine#3842: acceptance test for flavor and arch on HP-UX
Redmine#3279: datatype(), a function which returns the top-level type of a data container
Redmine#3279: datatype() acceptance test
Add missing setenv() for Windows.
Fix incorrect function call in timegm.c.
Cleanup AcquireLock
Remove unused AcquireLockByID, InvalidateLockTime
The argument to timegm() is not const-qualified.

This is emulation of a system function which doesn't const-qualify.
Furthermore, it calls mktime(), which does modify the struct tm.
Merge remote-tracking branch 'cdituri/cdituri/core/feature#3279-datatype-function' into HEAD
Adapt FnCallDatatype to new EvalContext API.
Merge branch 'datatype'
Tidy-up in EvalContextVariablePut().

Split over-long lines, moved some variable declarations closer to
their use.

Comment on the unwisdom of ignoring VariableTablePut()'s return.
Unfortunately, the obvious solution (forward that return value to our
caller, instead of returning true regardless) breaks various tests
(e.g. 01_vars/01_basic/013.cf), which is Not Good.
Only define tests/unit/db_test.c's CreateGarbage when used.

Its uses were subject to #if-ery; so apply similar to its definition.
Silences a warning when it's unused.
Suppress unused parameter warnings in tests/load/.
Tidy-up in db_load.c

Some overly-complex code to do simple things, some stray code
commented out that might as well be removed.  Moved CoinFlip one
function earlier to save the need for pre-declaration.
Merge pull request #1256 from ediosyncratic/compile-fixes

Compile fixes and tidy-up
Coalesce Chris Dituri's author names in .mailmap
Merge pull request #1258 from cdituri/core/dirty-mailmap

Coalesce Dituri's author names in .mailmap
make masterdir configurable via configure option: --with-masterdir=<directory>