Added the "list-locals" command.

Small string fixes and removed a std.path import that conflicted with stdx.process.

Implemented several new commands and moved the download location to the temp folder. ...

- dub install installs a package in the user/system repository or in the current directory
 - dub uninstall is not yet implemented
 - dub add-local adds a local folder as an installed package (useful so that projects use a git cloned package instead of the github one)
 - dub remove-local removes a local folder again as an installed package

Implement basic support for user/system installed packages and local packages. ...

Also removed a lot of (caught) exceptions. The installation/uninstallation code was moved and modified to the new package manager, which is now responsible for all locally installed packages.

Bugfix

Various additions and fixes. ...

- Added build types "plain" and "docs"
 - Added a build field "files" for package.json
 - Fixed some possible causes for InvalidMemoryOperationErrors.
 - Build options can now be of the form "dflags-x86" and "dflags-x86-dmd"

Fully implemented support for build configurations + added build config fields "lflags", "importPath", "stringImportPath" and "versions".

Added partial support for build configurations and added some diagnostic command line flags.

Avoiding empty linker arguments.

Fixed import library resolution.

Improved debug output in case of pkg-config failure.

Implemented import library resolution using pkg-config (untested).

The .dub folder is now also created for dependency-less projects.

Fixed upgrading/install logging of ~master dependencies.

Renamed everything "vpm" to "dub".

Implemented basic build platform detection and extended the possibilities for platform specific fields in package.json.

Added the possibility to specify "dflags-xyz" in addition to "dflags" for platform specific flags. ...

Can be one of:
 - dflags
 - dflags-platform
 - dflags-architecture
 - dflags-platform-architecture

where platform is "windows", "linux", "posix" etc. and architecture "x86", "x86_64", "mips" etc. (the lowercase version of the predefined D versions)

Note that the platform is currently hard-coded to windows-x86

All dub specific files are now stored in a .dub subfolder.

Removed the shell/batch scripts and modified dub to be a stand-alone executable. ...

Also removed all implicit dependencies to vibe.d (such as always specifying the vibe.d source folder using -I).
Fixed expanding of packages with multiple package.json files (the top-level folder inside of the zip archive was detected wrongly).

Incomplete generation of VisualD project files. Missing: project dependencies being compilable libraries and precompiled libraries as well as system installed precompiled libraries.

Added missing file.