Update and remove unused/indirect dependencies (#24)

grabrepos.py

@@ -12,18 +12,15 @@
 # Author: David Graeff <david.graeff@web.de>
 
 import yaml
-import io
 import os
-import re
-import fnmatch
 import shutil
 import difflib
 from git import Repo,Git
 
 def readyaml():
     with open("multiversion.yml", 'r') as stream:
         try:
-            content = yaml.load(stream)
+            content = yaml.load(stream, Loader=yaml.CLoader)
             return content
         except yaml.YAMLError as exc:
             print(exc)

requirements.txt

@@ -1,13 +1,2 @@
-Click==7.0
-gitdb2==2.0.5
-GitPython==3.1.30
-Jinja2==2.11.3
-livereload==2.5.2
-Markdown==3.0.1
-MarkupSafe==1.1.1
-Pygments==2.7.4
-pymdown-extensions==6.0
-PyYAML==5.3.1
-six==1.11.0
-smmap2==2.0.5
-tornado==5.1.1
+GitPython==3.1.41
+PyYAML==6.0.1