v0.7.0-alpha1

• A large portion of DCD's symbol resolution engine was removed and placed into the new dsymbol project.
• Several design bugs with the cache invalidation process were fixed. (TLA+ was helpful with this)
• Regression testing! DCD now has regression tests. This was long overdue... Information on the tests can be found on the testing wiki page
• DCD now uses the latest version of std.experimental.allocator.
• Added the ability to ask the client to list the paths that are registered with the server.
• Fixed a few crashing bugs.
• Removed all editor plugins. All editor plugins were maintained outside of this repository anyways, so this was more-or-less a dead code removal. Links to editor plugins and IDEs can be found on the wiki
• Support 2.068 syntax. The only thing that really changed is that "inline" and "mangle" are now on the list of "pragma" autocomplete suggestions.
• Add "LINE", "FILE", and other built-in symbols to autocomplete suggestions.
• Correctly expand the current working directory when starting the server with -I options specifying relative paths.