Document opDollar.
Clarify about opDollar without compile-time argument.
Fix wrong example code.
Move opDollar docs to its own section.

Expand with feedback from Kenji, Don, et al.
Improve the section for Lambda and Function Literal

Because, in D, "Lambda" is a kind of function literal.
fix Issue 10848 - Compiler should always try to inlining a direct lambda call
fix Issue 11130 - Enum members are now all in scope when evaluating enum member initializers
add docs.json/docs-prerelease.json to clean targets
Update attribute.dd

Corrected documentation of attribute `static`.
Removed one "is" in "is is".
Merge pull request #392 from ralphtandetzky/patch-1

Update attribute.dd
Merge pull request #393 from ralphtandetzky/patch-2

Removed one "is" in "is is".
Link to tutorial in navbar
Clarify: char is UTF8 code unit
Merge pull request #395 from qznc/codeunit

Clarify: char is UTF8 code unit
Merge pull request #387 from WalterBright/fix11130

fix Issue 11130 - Enum members are now all in scope when evaluating enum...
bar.obj should be abc.obj

From http://dlang.org/dmd-windows.html , we see "Building Libraries" section, "and existing object file bar.obj and existing library", bar.obj should be abc.obj
Merge pull request #397 from Passw/master

bar.obj should be abc.obj
Merge pull request #390 from dawgfoto/addDDoxToCleanTarget

add docs.json/docs-prerelease.json to clean targets
Update glossary.dd