Version: 2.9.0 [2014-04-27]
o Added toDefault() for opening the default device analogously to how
  the other toNnn() device functions works.
o Now it's possible to use devEval() to open a new or activate an
  existing interactive/screen device.
o Added support for (hidden) argument 'which' to devNew(), such that
  devNew(type, which=which) avoids opening a new device iff an existing
  device of the same device type and index/label already is opened.
  For instance, calling devNew("X11", which="foo") will open an X11
  device and label it 'foo'.  Subsequent calls will set the focus that
  same device.
o BUG FIX: Now devEval("windows", { plot(1:10) }) no longer gives
  "Error: Detected new graphics devices that was opened but not
  closed while executing devEval(): '2' (windows)".
o Bumped up package dependencies.


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/r-dots@2098 edb9625f-4e0d-4859-8d74-9fd3b1da38cb