fix Issue 12297 - std.typecons.Proxy does not properly forward IFTI calls
Fix Issue 12668 -  std.traits.functionAttributes should use the new
getFunctionAttributes trait.
Make emplaceRef parameter optional
emplaceRef unittest
findRoot fix

#1894 #1893 rewopen
SList: removed unnecessary code in opBinary
SList: add missed opBinaryRight
SList: small change in unittests
Mark std.file.read as @trusted
Change ReadFile(...) == 1 to ReadFile(...) != 0
Using nested trusted functions
Fix trustedRef
Convert std.math.isFinite into a template
Convert std.math.isSubnormal into a template
Add floatTraits.SIGNPOS_BYTE for float
Convert std.math.signbit into a template
Convert std.math.copysign into a template
Fixup use of whitespace in places
Merge pull request #2303 from 9rnsr/fix_hash

Tweak Tuple and Variant for correct hashing
Merge pull request #2302 from dcarp/master

Updated std.format documentation of width and precision specifiers