Fix fetching of "sub:packages".

Merge pull request #81 from zealotous/patch-1 ...

typo

typo ...

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Add warning for using the Mono-D project generator.

Fix generation of paths for sub projects.

Update change log.

Fix explicit 32-bit/64-bit compilation for DMD with separate compile/link passes.

Avoid file-not-found exceptions when constructing Package-s with no valid path.

Improve diagnostic output when trying to get metadata.

Metadata requests are now also setting a User-Agent header.

Fix header-lib's package.json and improve diagnostic output.

Implemented sub packages. Fixes #67. ...

Sub packages are referenced using the syntax "main-package-name:sub-package-name" and can be defined using a "subPackages" field or by putting package.json files in subdirectories of the main package.

Removing unnecessary output from unittest.

~branches still supported

Merge branch 'master' of github.com:rejectedsoftware/dub

uninstalling locally installed packages may be done by the user

Disable automatic upgrade of packages as it is currently broken. ...

This only ever worked for project locally installed packages, which are not supported anymore.

Add some basic example projects.

Avoid reloading local packages multiple times during a single run.

fixed uninstallation

Merge branch 'master' of github.com:rejectedsoftware/dub

using size_t to compare parts of the version string

Module statement addded to autogenerated version_.d

Compiler and linker flags are not added in a unique way anymore. ...

This was breaking command lines such as "--framework A --framework B" on Mac OS.

Made "dependencies" a per-configuration setting instead of a purely global setting.

Merge branch 'master' of github.com:rejectedsoftware/dub

dub's Version are now based upon Semantic Verioning 2.0.0-rc.2.

Update change log.

Merge branch 'master' of github.com:rejectedsoftware/dub

Avoid calling pkg-config with no libs present.