Bump version to 0.4.0.

Author: sharvil

setup.py

@@ -19,7 +19,7 @@
 from setuptools.dist import Distribution
 
 
-VERSION = '0.3.0'
+VERSION = '0.4.0'
 DESCRIPTION = 'Haste: a fast, simple, and open RNN library.'
 AUTHOR = 'LMNT, Inc.'
 AUTHOR_EMAIL = 'haste@lmnt.com'
@@ -31,9 +31,10 @@
   'Intended Audience :: Education',
   'Intended Audience :: Science/Research',
   'License :: OSI Approved :: Apache Software License',
-  'Programming Language :: Python :: 3.4',
   'Programming Language :: Python :: 3.5',
   'Programming Language :: Python :: 3.6',
+  'Programming Language :: Python :: 3.7',
+  'Programming Language :: Python :: 3.8',
   'Topic :: Scientific/Engineering :: Mathematics',
   'Topic :: Software Development :: Libraries :: Python Modules',
   'Topic :: Software Development :: Libraries',