configure script added, restart script added, uninstall script added, upgrade script added, config.py excluded from repository and added to .gitignore, install.py improved, generate nginx config fixed

upgrade.py

@@ -0,0 +1,37 @@
+import config
+import powershell
+import os
+
+# config
+git_url_session_server = config.git_url_session_server
+git_url_webrtc = config.git_url_webrtc
+git_url_lib = config.git_url_lib
+
+deploy_path = config.deploy_path
+git_url_session_server = config.git_url_session_server
+git_url_webrtc = config.git_url_webrtc
+pm2_name = config.pm2_name
+
+if not os.path.isdir(deploy_path):
+    print('Package not installed')
+    exit(1)
+
+# clone required repositories
+powershell.run_command('git pull', deploy_path + '/pixel-streaming-session-server')
+powershell.run_command('git pull', deploy_path + '/pixel-streaming-webrtc')
+
+# clone submodules
+session_server_library = deploy_path + '/pixel-streaming-session-server/lib'
+
+powershell.run_command('git pull ' + git_url_lib + ' master', session_server_library)
+
+# install node_modules
+session_server_root_dir = deploy_path + '/pixel-streaming-session-server'
+powershell.run_command('npm install', session_server_root_dir)
+powershell.run_command('npm install', deploy_path + '/pixel-streaming-webrtc/WebServers/SignallingWebServer')
+
+# configure session server
+import configure
+import restart
+
+print('\nPackage successfully upgraded.\n')