Automated replacements of removed `WEBURL` macro

All strings replaced (like in 3dd02f8af54d395667bf1bf50d173e4e876d119a):
"$(LINK2 $(WEBURL)" to "$(DPLLINK "

`WEBURL` macro was removed in pull #28.

Incorrect `WEBURL` using was added in 917167e434ce8320c8144659afcb5e14b2d70c74
Add `HTTP` and `HTTPS` macros
Finally supersede `WEB` by `HTTP` macro on site.

There are still `WEB` macro definitions in std.ddoc and std_consolidated.ddoc for Phobos.
Fix incorrect `HTTP` macro usage

Incorrect usage was exposed by `WEB`->`HTTP` rename
Remove `WEBX` macro

As it's equal to `HTTP` (previously `WEB`) macro just replace it.
Remove redundant `LUCKY` macro definition from glossary.dd
Document DDOC_ANCHOR
Use DDOC_ANCHOR with a dot prefix for qualified jump-to links

The dot prefix distinguishes qualified anchors from the old
unqualifed DDOC_PSYMBOL anchors. We need to keep the latter for
backward compatibility with various links online.
Don't display qualifying symbol names in Jump-to links to save space
Add deprecation of cast T[] to integral type
Bug 9033 Remove __thread from list of keywords

It was used only for internal testing, never documented,
and has been obsolete for three years.
Merge pull request #198 from donc/remove__thread

Bug 9033 Remove __thread from list of keywords
Merge pull request #179 from ntrel/qual-anchors

Document and use DDOC_ANCHOR for qualified anchors
Merge pull request #181 from denis-sh/macros-fixes

Macros fixes
Merge pull request #197 from leandro-lucarella-sociomantic/dep-cast-array-ulong

Add deprecation of cast T[] to ulong
Add note for built-in init property
Fixes Issue 2825 - Add note about C anon struct variables.
Merge pull request #202 from AndrejMitrovic/Fix2825

Fixes Issue 2825 - Add note about C anon struct variables.
Fix9098 - Code sample has invalid octal literals
Merge pull request #203 from AndrejMitrovic/Fix9098

Fix9098 - Code sample has invalid octal literals