Equalized package version in each package

Before, we didn't version our packages too cleanly.

Author: Felix Exner

controller_stopper/package.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package format="2">
   <name>controller_stopper</name>
-  <version>0.0.1</version>
+  <version>0.0.3</version>
   <description>A small helper node that stops and restarts ROS controllers based on a boolean status topic.</description>
 
   <!-- One maintainer tag required, multiple allowed, one person per tag -->

ur_calibration/package.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package format="2">
   <name>ur_calibration</name>
-  <version>0.0.2</version>
+  <version>0.0.3</version>
   <description>Package for extracting the factory calibration from a UR robot and change it such that it can be used by ur_description to gain a correct URDF</description>
 
   <!-- One maintainer tag required, multiple allowed, one person per tag -->

ur_dashboard_msgs/package.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package format="2">
   <name>ur_dashboard_msgs</name>
-  <version>0.0.0</version>
+  <version>0.0.3</version>
   <description>Messages around the UR Dashboard server.</description>
 
   <!-- One maintainer tag required, multiple allowed, one person per tag -->