Use ddoc-ed unittest feature
fix Issue 9976 - Needlessly large instantiation depth in std.typetuple algorithms
Make std.conv unittests independent of floating point rounding
Remove undocumented structuralCast in std.exception
fix Issue 4999 - Add Kenji Hara's adaptTo() to Phobos

Add structuralCast and structuralDownCast in std.typecons
Rename structuralCast to wrap, and structuralDownCast to unwrap
first pass of install targets
remove html generation for now, fix copy to not result in an extra layer of each subdir
Make Tuple.opAssign CTFEable
DDoc: std.stdio.byLine documentation fix and examples.

Removed the redundant /// ditto and added two examples to make it obvious to a newcomer how a range is useful here.
Merge pull request #1327 from kiith-sa/patch-5

DDoc: std.stdio.byLine documentation fix and examples.
nits
Merge pull request #1303 from jpf91/unittest

Make std.conv unittests independent of floating point rounding
Merge pull request #1274 from 9rnsr/fix9976

Apply ddoc-ed unittest feature in std.typetuple, and fix issue 9976
Detab and strip std.bitmanip.
Space after if
Merge pull request #1325 from youkei/fix_10218

Issue 10218 - std.typecons.opAssign is not CTFEable
Fixes Issue 4124 - Implement toString for BitArray.
Merge pull request #1144 from AndrejMitrovic/Fix4124

Issue 4124 - Implement toString for BitArray.
Move checkCTFEable to std.exception.assertCTFEable, and use it