Refactor `Tech`: get rid of `Q.wait()` usage, replace `Q.shallow()` with `Q.all()` on array of promise
Refactor `Tech`: get rid of `Q.wait()` usage, replace `Q.shallow()` with `Q.all()` on array of promise

bem/bem-tools,bem-archive/bem-tools,bem/bem-tools,bem-archive/bem-tools