Added script for automated release publishing

.gitignore

@@ -0,0 +1,3 @@
+*.sln
+*.pyproj
+*.suo

push_release.py

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+from zipfile import ZipFile
+import os
+import re
+import requests
+import sys
+
+
+OPTIMUS_REPO_URL = 'https://github.com/MolecularCartography/Optimus/releases'
+OPTIMUS_VERSION_PATTERN = '[0-9]+\.[0-9]+\.[0-9]+'
+
+if not 'OPTIMUS_GH_RELEASE_AUTH' in os.environ:
+    raise ValueError('GitHub access token for publishing releases must be written to "OPTIMUS_GH_RELEASE_AUTH" environment variable.')
+
+
+def findfilebymask(filemask, file_descriptor):
+    for file_name in os.listdir('./'):
+        match_result = re.match(filemask, file_name)
+        if match_result:
+            return match_result
+    ValueError('Release publishing failed: cannot find {} file.'.format(file_descriptor))
+
+
+optimus_file_match = findfilebymask('Optimus_v({}).knwf'.format(OPTIMUS_VERSION_PATTERN), 'Optimus workflow')
+cmdline_optimus_file_match = findfilebymask('Optimus_v({})_cmdline.knwf'.format(OPTIMUS_VERSION_PATTERN), 'Optimus command line workflow')
+installer_folder_match = findfilebymask('installer', 'installation script')
+
+optimus_gui_version = optimus_file_match.group(1)
+optimus_cmd_version = cmdline_optimus_file_match.group(1)
+if optimus_gui_version != optimus_cmd_version:
+    raise ValueError('Release publishing failed: ' \
+        'version numbers are different for GUI and command line versions of Optimus: {} vs {}.'.format(optimus_gui_version, optimus_cmd_version))
+
+payload = {
+    'tag_name': 'v{}'.format(optimus_gui_version),
+    'target_commitish': 'master',
+    'name': 'v{}'.format(optimus_gui_version),
+    'body': '',
+    'draft': False,
+    'prerelease': False
+}
+
+publish_response = requests.post(OPTIMUS_REPO_URL, headers={'Authorization': 'token {}'.format(os.environ['OPTIMUS_GH_RELEASE_AUTH']), "Accept": "application/vnd.github.manifold-preview"}, data=payload)
+
+release_asset_name = 'Optimus.v{}.zip'.format(optimus_gui_version)
+release_asset = ZipFile(release_asset_name, 'w')
+release_asset.write(optimus_file_name)
+release_asset.write(cmdline_optimus_file_name)
+for script_name in os.listdir('installer'):
+    release_asset.write('installer\\{}'.format(script_name))
+release_asset.close()
+
+requests.post('{}/{}/assets?name={}'.format(OPTIMUS_REPO_URL, publish_response['id']), headers={'Authorization': 'token {}'.format(os.environ['OPTIMUS_GH_RELEASE_AUTH']), "Accept": "application/vnd.github.manifold-preview"})