Added FieldNameTuple
Added FieldNameTuple to the template table.
Add setProxyAuthentication() in std.net.curl
Make std.file.readLink safe
Fix Issue 10915 - std.typecons.Nullable throws in writeln() if it's null
Add support of IeeFlags and FloatingPointControl for PPC32/64.

This corrects some existings constants and adds new constants and logic.
Reading the PowerPC documentation is sometimes confusing because not only the
CPU is big endian but also the bit numbering inside a word is reversed (old
IBM style big endian).
The functionaly has been verified on a Linux/PPC64le system with LDC. The LDC
specific implementation is left out.
Merge pull request #2597 from tom-tan/safe-file-readLink

Make std.file.readLink safe
Merge pull request #2581 from schuetzm/proxyuserpwd

Add setProxyAuthentication() in std.net.curl
Tag printing with debug to infer purity
Add non-debug purity unittest
Correct typo
Use debug printTree() instead
Mark std.uni.MultiArray.this as safe, pure and nothrow
cache doc
Merge pull request #2599 from monarchdodra/cache3

cache doc
Remove debug calls to printTree from within printTree itself
Tag unittests at global scope as pure
Add @safe to cycle unittests except for cycle(staticarray)
Merge pull request #2615 from braddr/cycle_safety

Make cycle(staticarray) @safe
add @safe annotations to all unittests which 'just work'