Add SubsController, which deals with things like what subtitle file is
currently open, rather than the contents of the current subtitle file.
Move the rest of the relevant logic from FrameMain there in addition to
all of the stuff from AssFile.
Use boost::filesystem::path for all paths, and std::string for all other
strings, converting to/from wxString as close to the actual uses of wx
as possible.
Where possible, replace the uses of non-UI wxWidgets functionality with
the additions to the standard library in C++11, or the equivalents in
boost.
Move the path token management logic to libaegisub (and rewrite it in
the process).
Add a basic thread pool based on asio and std::thread to libaegisub.
This touches nearly every file in the project and a nontrivial amount of
code had to be rewritten entirely, so there's probably a lot of broken
stuff.
Nearly all of the files including main.h are doing so only for OPT_GET
and friends, which are rather unrelated to the main things that main.h
declares.
Remove hardcoded assumptions about where in the menu items are and
instead bind menu items directly to commands so that customizing the
menu actually works.
Add support for user menu files that override the default one.
Add better support for multiple menus so that all of the menus can
potentially be created by the dynamic menu system rather than just the
main menu bar.
Add support for commands whose names change based on the current project
state so that undo and redo can work properly.
Simplify the menu json format and make commands responsible for
controlling what type of menu item is created rather than allowing
nonsensical configurations.
The Automation menu is currently not implemented.
Originally committed to SVN as r5554.
Thomas Goyne