Update version for pending 1.0.0 release

Author: techniq

setup.py

@@ -29,7 +29,7 @@
 
 setup(
     name='Flask-Script',
-    version='0.5.4-dev',
+    version='1.0.0-dev',
     url='http://github.com/techniq/flask-script',
     license='BSD',
     author='Dan Jacob',