Merge branch 'branch-0.5.0' into 'branch-0.5.0'

add build_deps.sh

See merge request megasearch/milvus!743

Former-commit-id: 8a1cea3ebb220c8977db90fdc42d2d2a6442d4c9

core/CHANGELOG.md

@@ -67,7 +67,8 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-610 - Change error code base value from hex to decimal
 - MS-624 - Re-organize project directory for open-source
 - MS-635 - Add compile option to support customized faiss
-
+- MS-660 - add ubuntu_build_deps.sh
+	
 # Milvus 0.4.0 (2019-09-12)
 
 ## Bug

core/ubuntu_build_deps.sh

+#!/bin/bash
+
+sudo apt-get install -y gfortran libmysqlclient-dev mysql-client libcurl4-openssl-dev
+
+sudo ln -s /usr/lib/x86_64-linux-gnu/libmysqlclient.so /usr/lib/x86_64-linux-gnu/libmysqlclient_r.so