updated changelog & merged mass_gap

CHANGELOG.md

 # Changelog
+## [1.1.0] - unreleased
 
-## [1.1.0.dev1] - unreleased
+## [1.1.0.dev1] - 2022-12-12
 
 - add HasMassGap: em_bright.source_classification returns HasNS, HasRemnant, HasMassGap
 - modify dag_writer to add mass_gap training workflow, add classifiers

ligo/em_bright/__init__.py

@@ -46,9 +46,9 @@ PACKAGE_DATA_LINKS = {name: f'{PACKAGE_DATA_BASE_URL}/{name}' for name in (
     'SLy.pickle',
     'EOS_BAYES_FACTOR_MAP.json',
     'EOS_MAX_MASS_MAP.json',
-    'EOS_POSTERIOR_DRAWS.h5'
+    'EOS_POSTERIOR_DRAWS.h5',
+    'MASS_GAP.pickle'
 )}
-PACKAGE_DATA_LINKS["MASS_GAP.pickle"] = 'https://git.ligo.org/sushant.sharma-chaudhary/em-bright-gp/-/raw/massgap/ligo/em_bright/data/MASS_GAP.pickle'  # noqa: E501
 
 
 def _download_data_file(url):