fix bool test
Remove useless Tuple from chain
Remove uses of nceg operators from std.math
Remove cases where an array is used in a boolean context
Merge pull request #1727 from yebblies/issue4733

Remove cases where an array is used in a boolean context
import std.typecons outside unittests since it is needed
Merge pull request #1728 from adamdruppe/std_uni_compile_error

import std.typecons outside unittests since it is needed
Merge pull request #1723 from monarchdodra/chainTuple

Remove useless Tuple from chain
Merge pull request #1722 from monarchdodra/cleanJSON

fix bool test
Correct docs & deprecation message in std.complex.

Reference to std.format.format [sic!] should be to std.string.format.

I've also taken the opportunity to slightly clean up the module's
import statements and some whitespace errors.
Merge pull request #1730 from WebDrake/complex-format

Correct docs & deprecation message in std.complex.
Merge pull request #1725 from yebblies/nceg

Remove uses of nceg operators from std.math
CTFE bug 9634 was fixed, remove the workaround
Modernize syntax: template(T)+enum --> enum(T) etc.
Turn the venerable alias A B; to alias B = A;
ctRegex is no experiment anymore
Merge pull request #1732 from blackwhale/revert-wa-regex

[TRIVIAL] CTFE bug 9634 was fixed, remove the workaround
Merge pull request #1733 from blackwhale/nice-templ-regex

Use the new template syntax in std.regex