* Compatible with LESS 1.4
* You must now call apos.endAssets after all pushAssets calls are complete. You can make apos.endAssets the last function in the list in your initApos() function, as we have done in the sandbox
* Assets are now minified at startup time, not on first access. This avoids the need for silly cache-priming web accesses, and allows the asynchronous @import implementation of LESS 1.4 to work