* [Android] Remove shared library from binary of Weex

[YorkShen]

• Use jsc-android under BSD Licnese to replace LGPL dependency. The jsc-android dependency only exists in compiling time, there is no limited in runtime for users, they could use whatever they like.
• Remove LGPL files(*.so) in the convenience binary of Weex, which will give users the freedom of choosing JS interpreter at runtime.

[weex-bot]

	Warnings
⚠️	Potential BREAK CHANGE. Modify public in android/sdk/src/main/java/org/apache/weex/WXEnvironment.java without metion it in commit message. You'd better add '@notdanger' in your commit log.
⚠️	No Changelog changes! - Can you add a Changelog? To do so,append your changes to the changelog.md
⚠️	Current pr not bind the milestone
⚠️	If your PR is about fixing a bug excluding crash the code,you should add the demo link in the PR description. Demo link: http://dotwe.org/vue

Generated by 🚫 dangerJS against 335addd

[YorkShen]

En...

To my surprise, the URL obejcet in groovy doesn't support redirection, which cause Travis Failure. I will look into it later.

[YorkShen]

The URL redireciton is fixed by using to https://github.com/apache/incubator-weex/blob/release/0.26/android/sdk/weex_sdk-0.26.0.aar.

[lucky-chen]

lgtm