Rewrite of the IDE's project closing system, motivated by issue #277
Basic undo/redo beginnings in screen editor (transforms and deletion only for now). Fixed multiline text input not scrolling properly after latest text input fixes.
Fixed crash that would happen if you tried to open a folder node in ExampleBrowserWindow.
Player will now print out backtrace to stdout
Merge pull request #290 from TheCosmotect/example-browser-fix

Fixed crash that would happen if you tried to open a folder node in ExampleBrowserWindow.
Saving changes on project run no longer saves all open files (just those that belong to active project). Added PolycodeEditorManager::saveProject().
Fixed undo/redo for copy and paste in 2d editor
Merge branch 'master' of https://github.com/ivansafrin/Polycode
Fixed crash when undoing command-copying entities in screen editor
Removed debug printf
Fixed scaling undo bug introduced by last commit
Fixed focus not setting properly in screen editor resulting in accidental deletion of entities.
Merge pull request #292 from TheCosmotect/project-save

Saving changes on project run no longer saves all open files (just those...
Merge pull request #289 from TheCosmotect/close-project-2

Rewrite of the IDE's project closing system, motivated by issue #277
Particles now default to not ignoring parent matrix. Added setter and getter for ignoreParentMatrix option in particle systems. Added screen editor option to toggle ignoreParentMatrix option in particle systems.