Bump version again

The '0.4.14' tag points to a broken commit, so we need a new version.

Author: rlamy

setup.py

@@ -118,7 +118,7 @@ def run(self):
     name='vmprof',
     author='vmprof team',
     author_email='fijal@baroquesoftware.com',
-    version="0.4.14",
+    version="0.4.15",
     packages=find_packages(),
     description="Python's vmprof client",
     long_description='See https://vmprof.readthedocs.org/',