* Add new_doc to develop branch

* Add pics of Anakin tutorial

* Update anakin_tutorial.md

* Delete anakin_fm_en.png

* Delete contri1.JPG

* Delete contri2.JPG

* Update build_and_install_lib_cn.rst

* Update compile_paddle_lib_cn.md

* Update compile_paddle_lib_en.md

* Update install_doc.rst

* Update install_doc.rst

* Update index_en.rst

* Update index_en.rst

* Update index_en.rst

* fix build doc

* add some description about Python ABI

This is part of big move of v2 codes to legacy sub dir.

fix https://github.com/PaddlePaddle/Paddle/issues/9014 and https://github.com/PaddlePaddle/Paddle/pull/10304

* scripts: clean bash scripts.

* Fix build related documents.

Fix rst format issues in several files.

* fix wheel package name

* delete cuda7.5 cudnn5

* add manylinux docker image usage

* update by comment

* update by comment