Bump flask from 0.10.1 to 1.0

Bumps [flask](https://github.com/pallets/flask) from 0.10.1 to 1.0.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/master/CHANGES.rst)
- [Commits](pallets/flask@0.10.1...1.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

requirements.txt

@@ -1,5 +1,5 @@
 BeautifulSoup==3.2.1
-Flask==0.10.1
+Flask==1.0
 Flask-Admin==1.1.0
 Flask-Assets==0.8
 Flask-Cors==2.0.1