Fun with tags

• Add the :DUupdateCTags command for updating the tags file(with Dscanner)
• Make :DJump and friends push to the tag stack
• Fix an off by one mistake with byte position calculation

Remove dependency on `uniq`

Apparently uniq is a bleeding edge function of Vim, and it's a bad idea to depend on it.

Syntax and style checks

• Add :DUsjump, :DUsjump and bang option to ignore context
• Add syntax and style checks using Dscanner

Jumping to symbols and Dscanner support

• Add DUjump command for jumping to declarations
• Add Dscanner as an option for finding declarations
• (bugfix) Automatically glob and expand the import paths

Bugfixes and speedups

• Add instructions for using with plugin managers.
• Fix the command line string formatting problems.
• Make dutyl#core#bytePosition always use unix file format.
• Fix usage for Windows without VimProc.
• Support both dub.json and package.json as the DUB file.
• Change the DCD server control functions to use call instead of echo.
• Use DUB's --annotate flag to prevent downloading dependencies.
• Register import paths immediately when starting the DCD server.
• Clean import paths from last character if it's a path separator.

Initial release

Currently supported features:

• Getting the imports list from DUB or from a configuration file
• Autocompletion using DCD
• Finding DDoc using DCD