* Create a new paddle build option to build documentation library

* only build copy_paddle_pybind

* Update the to build paddle_python

* build everything

* Use DWITH_FLUID_ONLY

* add build lite

* add a smaller lib

* Update the gen_doc_lib function to handle multiple cases.

* Prevent Paddle triggering documents deployment.

* test fix release branch api check

* fix reviews > 30

* check approval after test, check api diff before test

Port dist_transpiler new added codes
Port ut for clone desc

* Simplify the travis script.
Now use docker to deploy documentations

* Check for the pull request

* Update paddle_build.sh

* Update paddle_build.sh

* get diff for all changes in current branch

* diff with upstream/develop

* let dist test serial

* test

* test

* test2

* wip

* test using pr id

* test

* add log

* add log

* test

* test

* test

* test

* add approver check

* revert travis ci

* merge latest api.spec

* fix get token

* update API.spec

* up to date