editor window title improvements

Shows the project name in the window title (good to differentiate multiple instances of Godot with different projects loaded).

Clears the previous scene name from the window title when creating a new scene.
add display/resizable support to Linux

add display/resizable support to Linux
Merge pull request #315 from adolson/patch-2

add display/resizable support to Linux
Merge pull request #272 from adolson/patch-1

editor window title improvements
added bindings for InputMap
stops running process when quitting editor

I noticed a bug where I could close Godot while I was running a project.

If the program was left running and then ran into an error,
or if an error was caught by the debugger and then I quit Godot,
I could no longer close the running project without manually killing it.
This fixes that problem by essentially hitting the Stop button automatically
just prior to quitting the editor.
Merge pull request #323 from adolson/inputmap-bindings

added bindings for InputMap (closes #283)
Merge pull request #324 from adolson/close_running_program_on_editor_quit

stops running process when quitting editor