Give sum a seed capability
Improve emplaceRef for qualified construction
Eliminate _assertPred
 Issue 5870 - Debug code in SortedRange assumes it can always print the range
Merge pull request #1970 from monarchdodra/sumseed

Give sum a seed capability
Update range.d
Merge pull request #2028 from Infiltrator/patch-1

 Issue 5870 - Debug code in SortedRange assumes it can always print the ...
Fix DDoc typo.
Merge pull request #2031 from monarchdodra/ScopeBufferConst

Fix DDoc typo.
Merge pull request #2017 from andralex/datetime

std.datetime: eliminate _assertPred
OutBuffer is now an OutputRange
Merge pull request #2034 from WalterBright/OutBufferToOutputRange

OutBuffer is now an OutputRange
callback uses size_t not double

- Not sure why the curl internal double arguments
  are converted to size_t in the first place though.
Merge pull request #2035 from MartinNowak/fixCurlDocs

callback uses size_t not double
Fix pull request #1961: add more hasExceptionTraps checks
Merge pull request #2039 from jpf91/fix1961

Fix pull request #1961: add more hasExceptionTraps checks
Enable DDoc for std.uni.byCodePoint

See also #1985
Merge pull request #2040 from JakobOvrum/bycodepointdoc

Enable DDoc for std.uni.byCodePoint
Fix Issue 9616 - SortedRange should support all range kinds
Improved error messages