AUI-1279 Remove ancestors implementation. Fall back to YUI3 own ancestors implementation
AUI-1279 Add testSelf option to ancestorsByClassName to match ancestors default behavior
AUI-1328 Run commands using "spawn-local-bin" to fix problems on Windows
AUI-1328 Move aui-base scripts to Gulp tasks
AUI-1328 Require NodeJS v0.11.13

Fixes OS X maxfiles stream limit: https://github.com/joyent/node/issues/5841
AUI-1328 Move exec/postexec commands to build task
AUI-1328 Refactoring watch task to build changes into meta files
AUI-1328 Use Gulp's v3.81 process.env.INIT_CWD to get the current working dir
AUI-1328 Source formatting