merge up to detachable joint - compilation time jumps from 10 mins to…

… 1 hour, should investigate

Changelog.md

@@ -54,6 +54,21 @@
 
 ### Ignition Gazebo 2.xx.xx (20XX-XX-XX)
 
+1.  Add DetachableJoint: A system that initially attaches two models via a fixed joint and allows for the models to get detached during simulation via a topic.
+    * [Pull Request 440](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/440)
+
+1. Update physics state even when paused (not stepping)
+    * [Pull Request 556](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/556)
+
+1. Fix entity tree context menu position
+    * [Pull Request 567](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/567)
+
+1. Fix moving static model with link offset
+    * [Pull Request 566](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/566)
+
+1. Add support for setting visual transparency through SDF
+    * [Pull Request 547](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/547)
+
 1. Add `JointPositionReset` and `JointVelocityReset` components to reset the joint state.
     * [Pull Request 437](https://bitbucket.org/ignitionrobotics/ign-gazebo/pull-requests/437)
 

bitbucket-pipelines.yml

@@ -41,7 +41,7 @@ pipelines:
           - mkdir build
           - cd build
           - cmake .. -DCMAKE_BUILD_TYPE=coverage
-          - make -j4 install
+          - make -j1 install
           - export IGN_CONFIG_PATH=/usr/local/share/ignition
           - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
           # run codecheck before tests so flaky tests don't obscure codecheck failures