Move utility functions from dub.compilers.compiler to dub.compilers.utils.

Avoid any of the newly deprecated symbols. ...

The only exception is the serialization code, which still iterates over deprecated fields, as well as Package.dependencies, which will be replaced in the next commit.

Make all internal generator functionality private.

The VisualD project generator sets the working directory. Fixes #567.

Uses <debugworkingdir> to have the right debugging working directory.

Get .visualdproj files to be created in the .dub directory. Less cluttering of the working directory. ...

However this creates a problem since when debugging an executable through VS the default working directory will be .dub/ where it was ./ previously. This can cause eg. files not being found.

This "debugging working directory" setting is stored in the .suo file generated by the IDE, so maybe a VisualD option is needed to get out of this.

Change VisualD project generation logging. ...

- display the generate .sln filename which is usually the one you reach for after
- using the "solution" word instead of "project" since "projects" refers to parts of a solution in VS linguo.

Fix naming convention of FileMode enum. ...

Also some minor code style fixes.

Remove "_d suffix for "debug" builds in VisualD generated project files. ...

The problem is that it is inconsistent with how "dub build" work.
Also (this is opinion here) it lets output files proliferate with little benefit.

Change Build(Options/Requirements) to BitFlags.

Remove some obsolete code.

Apply patch by ketmar: remove comma expressions and fix property syntax. ...

Also contains two minor additional style fixes.

Added @property at MartinNowak's request

Broke long line onto multiple lines

Reamed vsCpuArchitecture to vsArchitecture ...

- Moved to end of module and made private similar to existing utility
functions
- Cleaned up spaces instead of tabs

Fixed generation of Solution Platform for x64

Remove PackageManager argument from createProjectGenerator(). ...

The argument is also removed from all Generator sub classes.

Step one of abstracting package description format

Added singleFile support

Removed trailing whitespace

Converted line endings from CRLF to LF

Fix orphan format specifier.

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

Collect build targets after running preGenerateCommands. Fixes #144. ...

This enables used generated source files without listing each of them manually. Now a single "sourcePaths" entry is sufficient.

Rename Project.mainPackage to rootPackage. ...

Root package better describes the package's role of the root of the dependency hierarchy.

Don't try to add references to package description files of sub packages into VisualD projects. Fixes #216.

Deprecate the "visuald-combined" generator.

Reimplement the VisualD generator based on the new target generation code and fix link dependencies for static libraries.

Implement individual building of dependencies.

Avoid `\"` in quoted paths output by the VisualD project generator. Fixes #195.