update links to dlang

Avoid repeated addition of the same dependency in DependencyResolver.

Fix compilation on DMD 2.066.1.

Fix all deprecation warnings on 2.071.0-b1, except for std.stream. ...

std.stream is still needed to support UTF filenames.

Merge pull request #804 from D-Programming-Language/upgrade-sdlang-d ...

Upgrade to SDLang-D 0.9.4.

Fix lexing of empty string literals (Abscissa/SDLang-D#34).

Add compatibility code for DMD <= 2.065

Upgrade to SDLang-D 0.9.4.

Compiler fix on latest DMD beta.

Merge pull request #801 from p0nce/shared-libs-quick-fix ...

Quick fix for shared libraries with (LDC || OSX)

Quick fix to allow building shared libraries with LDC on Windows, with LDC on OS X, and with DMD on OS X.

Merge pull request #762 from D-Programming-Language/issue240-dustmite-path-based-deps ...

Fix "dub dustmite" for path based dependencies. Fixes #240.

Merge pull request #794 from jeanbaptistelab/issue782 ...

Proposed fix for issue #782

Fix for issue #782. Analyze the output of pkg-config --libs <lib> and massage them if they appear to already be ready for direct use with the compiler. ...

This change allows using pkg-config within dub with .pc files that were written for use with the compiler directly, which can prove troublesome in some cases (for instance, when using the GtkD debian packages as mentioned in issue #7
82).
Basically, we analyze the output of pkg-config and fix up arguments so that they are suitable for the D compiler invokations through dub.

Arguments handled include:
- double "-L" flags (from gtkd3.pc for example) -> passed as single "-L" flags
- "-defaultlib" flags (from phobos2.pc for example) -> passed as-is (previous dub code used to pass them as "-Ldefaultlib")
- "-pthread" flags (from libavcode.pc for example) -> passed as "-L-l-pthread" (previous dub code used to pass them as-is)

The test case tests for these arguments explicitly, is currently only applicable to DMD frontend versions >= 2.068 as other frontends/versions seems to have some issues with shared libraries.

Add test case for issue #782

Merge pull request #786 from MartinNowak/slice_package_name ...

slice name to get base and sub package names

Merge pull request #788 from develop32/master ...

Fix the error regex in the Sublime Text generator

Fix the error regex in the Sublime Text generator ...

Code for the DMD compiler always adds -vcollums flag if the frontend
version is => 2066. The old regex assumes that the error message has
only a line number. This change fixes the generator so that it enables
error navigation for this specific compiler setup.

Avoid API breakage vs. 0.9.24.

slice name to get base and sub package names

Fix dependency resolution for unsatisfyable optional dependencies. ...

If another (unchosen) dependency in the graph had a required dependency to the unsatisfyable version, the resolution process failed, even if not choosing the dependency would have been valid.

Add additional unit test for optional dependencies.

Merge pull request #780 from gkotian/master ...

Minor README fixes

Store path based selections relative to the root package.

Fix loading packages that have a path based selection.

Fix absolute paths in test case.

Minor README fixes

Echo test commands.

Add test case for issue #777.

Output sorted dependencies to dub.selections.json. Fixes #709. ...

Also adds a warning message when dub.selections.json fails to load.