added empty() to ClusterVector and fixed docs (#209)

- added ClusterVector::empty() to check if the vector is empty
- Fixed generation of missing docs for ClusterVector

docs/src/ClusterVector.rst

@@ -3,4 +3,13 @@ ClusterVector
 
 .. doxygenclass:: aare::ClusterVector
    :members:
-   :undoc-members:
+   :undoc-members:
+   :private-members:
+
+
+
+.. doxygenclass:: aare::ClusterVector< Cluster< T, ClusterSizeX, ClusterSizeY, CoordType > > 
+   :members:
+   :undoc-members:
+   :private-members:
+   

docs/src/Workflow.rst

@@ -37,7 +37,7 @@ unfamiliar steps.
 
 
 Checklists for deployment
-~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 **Feature:**