Dashing is no longer an in-progress release. (ros2#268)

Author: nuclearsandwich

source/Installation.rst

@@ -22,7 +22,7 @@ Select your ROS distribution
 +-----------------------------------------------+-------------------------------------------------+---------------------------------------------------+
 | `ROS 2 Bouncy Bolson <Installation/Crystal>`  | `ROS 2 Crystal Clemmys <Installation/Crystal>`  | `ROS 2 Dashing Diademata <Installation/Dashing>`  |
 +-----------------------------------------------+-------------------------------------------------+---------------------------------------------------+
-| Released July 2018                            | Released December 2018                          | To be released May 2019 (In progress)             |
+| Released July 2018                            | Released December 2018                          | Released May 2019                                 |
 +-----------------------------------------------+-------------------------------------------------+---------------------------------------------------+
 | Supported until July 2019                     | Supported until December 2019                   | Supported until May 2021                          |
 +-----------------------------------------------+-------------------------------------------------+---------------------------------------------------+