Official Dub package for DWT

[Jacob Carlborg]

This has been long overdue but I would like to announce that I've just 
released an official Dub package for the DWT library [1]. For a usage 
example, please see the GitHub page [2].

For those not familiar with DWT, it's a library for creating 
cross-platform GUI applications. It's uses the native drawing operations 
of the operating system. It's originally a port of the SWT Java library, 
it's a complete port and contains no Java or JNI code.

A couple of other changes are:

* All the previous Git submodules have now been inlined in the 
main/super repository [3]
* Proper testing on both Linux and Windows has been added
* Separate tool for building all the snippets
* Bumped the minimum requirement of the compiler to DMD 2.078.1 (I'll 
probably add support for LDC soon)
* Officially removeed any support for building with D1

[1] http://code.dlang.org/packages/dwt
[2] https://github.com/d-widget-toolkit/dwt#usage
[3] https://github.com/d-widget-toolkit/dwt

-- 
/Jacob Carlborg