Merge pull request #513 in G/fastr from ~ZBYNEK.SLAJCHRT_ORACLE.COM/fastr:newAttrs2 to master

* commit 'd17d2dbe':
  A specialization added to RemoveFixedAttributeNode
  A couple of fixes in the new attributes model
  get/setRowNames occurences replaced by node invocations
  the rownames field removed from RVector
  More getNames() occurences treated
  AbstractContainer.setNames call sites replaced by node invocations
  AbstractContainer.getNames call sites replaced by node invocations
  the names field removed from RVector
  AbstractContainer.getDimNames call sites replaced by node invocations
  RAbstractContainer.setDimNames call sites replaced by node invocations
  Get/Set/Remove nodes created for each special attribute
  several inlining issues fixed
  RAbstractContainer.getDimensions call sites replaced by node invocations
  JavaDoc added to attribute nodes
  Replacing RAttributable.getAttr call sites by node invocations
  SetClassAttributeNode introduced