Duplicate pointsTo as "doesPointTo"
Implement "isUnionAliased"
Re-implement "pointsTo" as "doesPointTo"
Rename pointTo as doesPointTo, insert deprecated alias
Change pointsTo to mayPointTo and doesPointTo
Rewrite pointsTo documentation
Fix issue 12747 std.regex bug in the parser allows reference to open groups.

Check the stack of opened constructs for groups when emit back-refs.
add annotations to biguint
std.stdio: annotate C functions
std.conv: parse not handling some cases
Make std.datetime.Date use ddoc-ed unittests.
Merge pull request #2187 from jmdavis/datetime_ddoc_tests

Make std.datetime.Date use ddoc-ed unittests.
Convert std.datetime.Datetime to use ddoc-ed unit tests.
Reformat some ddoc-ed examples so that they're not so long.
Added std.experimental
Merge pull request #2190 from Orvid/stdexperimental

Added std.experimental
Moved note.md into the right directory
Don't assume va_list is void*
Merge pull request #2191 from Orvid/stdexperimental

Moved note.md into the right directory
Fixup spelling mistake.