ecomfe/edp#296
bump to 1.0.15-beta.2
多次调用 edp.path.satisify 会导致性能问题，使用缓存来减少调用的次数

ecomfe/edp#307
Merge branch '1.0/release' into 1.0/feature/307
FIX edp lint and test case failed issue.

ecomfe/edp#307
修复 less-compiler 的 compileOptions 参数重复的问题

ecomfe/edp#307
bump to 1.0.15-beta.3
Use setImmediate instead of setTimeout(fn,0)
1.0.15-beta.4