Add basic 'tasks' file, for dev convenience

also, to test git commit hooks

tasks.py

@@ -0,0 +1,16 @@
+# -*- coding: utf-8; -*-
+"""
+Tasks for 'byjove' project
+"""
+
+from invoke import task
+
+
+@task
+def release(c):
+    """
+    Release a new version of 'byjove'
+    """
+    c.run("find . -name '*~' -delete")
+    c.run('npm run build')
+    c.run('npm publish')