Add lobster mode.
Add -f option to print full paths in errors and stack traces.

This is for the benefit of lobster-mode, so it can present clickable
error messages and stack traces a la inferior-python-mode.

TODO: It looks like serialised VM data will include the full paths - is
that a problem??
Allow VS2012 to do its own thing.
Commit lobster EXE.
Reinstate original output filter after noticing it works as it should.

I am sure that was not the case before...
Add -u to default lobster args.

No major reason why not (you certainly seem to need it on Windows...)
and it demonstrates that `lobster-program-args' is a list.
Add Box2D.
.gitignore some Box2D junk.
Mark `lobster-program' as a safe file-local variable.
Indent lines to be aligned with any nested construct containing them.

This isn't quite the right thing, because lobster moans about any
dedenting. For example,

call_function([x,
               y],
              [x]) // <-- dedented

Mostly does what I want for now.
Add profiler messages to the compilation error regexp.
Tweak graphics code a bit.

- Add line list primitive;
- Add gl_ortho2 - like gl_ortho, but with bounds of screen supplied
  directly (can also use this to create a right-handed 2D screen);
- Forcibly set blend mode each frame. Actually this wasn't the problem
  in the end, but no reason why not;
- Add vertexcolor shader that multiplies lobster gl colour by vertex
  colour.
Add super-basic Box2D integration, version -1.
Fix minor indentation problem.

Fixes indenting code along the following lines:

> fred(x,
>      y)

Pressing return after the ) would previously align the next line with
the y rather than the fred, because of the use of back-to-indentation
rather than something more like python-nav-beginning-of-statement.
Change private symbols' prefix to `lobster--'.
Adjust lobster-mode syntax table, to improve dabbrev.
Fix comments in syntax table.

The punctuationizing was stepping on their entries...
Add rnditem builtin.
Expand physics a bit until it does something useful.
Make compilation error regexp treat info messages as info.