Qiniu - support user-defined file name.alfredworkflow

add a new workflow named Qiniu - support user-defined file name.alfredworkflow that allow users define the file name by uploading.

提供了一个新的支持自定义上传文件名的workflow，Qiniu - support user-defined file name.alfredworkflow.

release for version 1.0

1.0正式版本，自测了所有功能，解决了一些明显bug，体验进一步提升

pre-release for version1.0

merge pull request from Kun Chen

1. 添加样式分隔符和样式选择。
2. 支持使用前缀以区分不同上传源。

pre-release for version1.0

some features are in process, not totally finished!