Animatron/player — pull request #32 by shamansir (2012-08-06 14:44:56+00:00)
Title: 0.23 Bugfixes: Fix Sandbox Error Handling + Global Composite Operation

* Now any error is handled: sometimes the sandbox page refresh was required to continue debugging, now all errors are reported on the fly (however, they now continue to spool the console (I've tried to oversmartly filter some reappearing errors before, but failed), but once in a three or more seconds — I think it is ok).
* Implemented [`GlobalCompositeOperation`](http://www.html5canvastutorials.com/advanced/html5-canvas-global-composite-operations-tutorial/) as `.acomp` method of `Builder`, may be used like this (for any element: composition mode will be switched back when this element will be rendered (with children, if it has any)):

b()....acomp(C.C_SRC_OVER);
b().acomp(C.C_XOR)....

[See `API.md`](https://github.com/Animatron/player/blob/0.23-bugfixes/doc/API.md#constants) _Contants / Composition_ section, for a list of contants