Merge pull request #17 from ricksr/dependabot/pip/elasticsearch-7.0.4

Bump elasticsearch from 6.1.1 to 7.0.4

Author: ricksr

requirements.txt

@@ -5,7 +5,7 @@ certifi==2017.7.27.1
 chardet==3.0.4
 click==7.0
 dominate==2.4.0
-elasticsearch==6.1.1
+elasticsearch==7.0.4
 Flask==1.1.1
 Flask-Babel==0.12.2
 Flask-Bootstrap==3.3.7.1