Improve JSON parser error format. Fixes #317. ...

Errors are now displayed as "file(line): Error: message".

Step one of abstracting package description format

Bug fix, was not accepting package

store metadata cache on disk ...

- Writing is a little slow due to Json escaping
  so also use a dirty flag to track when a writeback
  is needed.

- The metadata contains readme files for every project,
  strip that data for now because of the point above.

Remove the build type switch for "dub test". See #385.

Merged TestCovCommand into TestCommand, but with switch

Added test-cov command

Cache the results for upgrade suggestions. ...

The same results are not reused for one day instead of querying the registry every time. Note that this already used to be the case some time ago.

Add "singleFile" as a possible --build-mode value on the help screen.

Fix helpText

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.

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

Avoid redundant loading of packages and remove PackageManager.getTemporaryPackage.

Use "dub.json" instead of "package.json" in documentation

Support :subpackage shorthand syntax. Fixes #315. ...

This works for dependencies, as well as for referencing sub packages on the command line.

Display the build date for "dub -h".

Add the --build-mode switch to control how the compiler and linker are invoked.

Merge pull request #306 from ColdenCullen/master ...

Allow System and Local flags on all commands

Added old --system and --local flags back, but marked as deprecated.

Switched to '--cache=x' param type for package fetching.

Add hint to run "dub <cmd> -h" when usage errors occur.

Removed 'Wide' from PlacementLocation member names.

Merge branch 'upstreammaster' ...

Conflicts:
	source/dub/project.d

Add spellchecker to dub for --config mismatches.

Removed logInfo from commandline.

Added support for fetching to any location, now need to add support for finding packages in other locations.

Implement a basic "clean" command. Fixes #134.

Switched dub.fetch() to take an enum FetchOptions instead of 4 bools.

Fix member naming convention.