Added .gitignore

Make prepareBuildSettings, extractBuildOptions and setTarget const

Use executeShell() to invoke the compiler. See #356. ...

execute() doesn't support running scripts with shebang lines. Still needs to be actually tested with a script on Linux/OS X.

Revert "Fix detection of the "command" command line argument. Fixes #351." ...

This reverts commit cab8ca5.

Fix detection of the "command" command line argument. Fixes #351.

Resolve sub packages when loading path based dependencies. Fixes #347.

Add a --temp-build switch to force building in the TEMP folder. Fixes #294.

Avoid assertion when building path based sub packages (or packages with path based dependencies).

Avoid downloading base package for non-existent sub package references, if possible. ...

When it can be proven that a certain sub package doesn't exist (this is the case when the base package descriptions doesn't contain any path based dependencies), the dependency will be skipped as invalid instead of downloading the whole package to search for the sub package there.

Only add platform flags for targets that generate an actual binary. Fixes #346.

Avoid downloading base packages if possible. Fixes #345. ...

Before manually extracting a sub package from a base package, the package description of the base package is first searched for the sub package. This avoids the otherwise necessary download of the base package whenever the sub package is a non-path-based one. This also opens the way for the dub registry to always collect all sub packages into the reported package description, so that it will never be necessary to actually download a package for getting a sub package.

Fix detection of root package references during dependency resolution. See #334. ...

- References to and from sub packages of the root package are now also recognized as coming from the root package
 - Any dependency reference within a certain package "family"* (including path based ones) is now mapped to the same base package (circumventing the lookup of all possible matches)

* "family" == base package and all of its sub packages

Disallow :short_hand references to sub packages from within sub packages. See #334. ...

Until the semantics are defined, disallow this use of the short hand syntax. The two
semantic possibilities for ":subpack2" within a sub package "pack:subpack1" are either "pack:subpack2" or "pack:subpack1:subpack2". Both could be more or less valid options.

Fix detection of invalid dependencies in sub packages of the root package. See #334.

Avoid probing all versions of the root package when resolving its own sub packages. ...

This avoids downloading all versions of the root package whenever it contains references to sub packages of itself. See #334.

Update GitHub links in README.md

Print a proper error message for unknown dependency versions of the root package.

Avoid redundant loading of packages and remove PackageManager.getTemporaryPackage.

Update change log.

Output all possible source/import files for "dub describe". Fixes #185. ...

Files that are not used for the current configuration or platform are output with an "unused" prefix (e.g. "unusedSource").

Recognize the "systemDependencies" field.

Merge pull request #339 from jrtc27/whitespace ...

Further whitespace cleanup

Removed extra spaces between words

Ensure all files end with a newline

Use tabs in all JSON and D files

Merge pull request #338 from jrtc27/whitespace ...

Cleaned up whitespace

Removed trailing whitespace

Converted line endings from CRLF to LF

Merge pull request #337 from jrtc27/dub-json ...

Use new dub.json file everywhere

Renamed all "package.json" files to "dub.json"