Version bump to 0.3 (#55)

setup.cfg

@@ -7,11 +7,11 @@ max-line-length=119
 convention=numpy
 
 [build_sphinx]
-version = 0.2
+version = 0.3
 
 [metadata]
 name = econml
-version = 0.2
+version = 0.3
 author = Microsoft Corporation
 description = This package contains several methods for calculating Conditional Average Treatment Effects
 long_description = file: README.md
@@ -24,7 +24,9 @@ project_urls =
     Source Code=https://github.com/Microsoft/EconML
     Documentation=https://econml.azurewebsites.net/
 classifiers =
-    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
     License :: OSI Approved :: MIT License
     Operating System :: OS Independent
 
@@ -50,7 +52,6 @@ tests_require =
     matplotlib < 3.1
     pandas
     jupyter
-; TODO: remove matplotlib, pandas dependencies when cleaning up tests
 
 ; TODO: exclude tests?
 [options.packages.find]