Log Message:
devel/hs-ansi-terminal: Update to 0.11.4

Version 0.11.4
* Add reportLayerColor, getReportedLayerColor and getLayerColor for
  querying the layer color on terminals that support the functionality.
* Add useAlternateScreenBuffer and useNormalScreenBuffer, and support for
  switching between the Alternate and Normal Screen Buffers.
* When the argument is 0, cursorUpCode, cursorDownCode, cursorForwardCode,
  cursorBackwardCode,scrollPageUpCode and scrollPageDownCode now yield "",
  and cursorUpLineCode and cursorDownLineCode now yield the equivalent of
  setCursorColumnCode 0. This is because, on some terminals, a 0 parameter
  for the underlying 'ANSI' code specifies a default parameter of 1.
* Add osc as a utility function, for OSC sequences.
* setTitle now uses the recommended STRING TERMINATOR (ST) of \ESC\\,
  rather than the legacy \BEL (\007), and filters the title of all
  non-printable characters, not just \BEL.
* Improvements to Haddock documentation.