replace imports of `q` with bluebird
```
find src spec -name '*.js' |
xargs perl -i -pe 'if (/require\(.q.\)/) { $_ = "import Promise from '\''bluebird'\'';\n"; }'
find src spec -name '*.js' |
xargs perl -i -pe 'if (/import q/) { $_ = "import Promise from '\''bluebird'\'';\n"; }'
```