Fix dependencies, update CI (AprilRobotics#88)

* package.xml: Upgrade to v3, add numpy dependency

* [CI] Add noetic, foxy; turn on PRERELEASE by default; upgrade Industrial-CI to master

* [CI] Skip testing

* package.xml: Do not install python2-numpy by default

.travis.yml

@@ -3,10 +3,15 @@
 sudo: required
 language: generic
 env:
+  global:
+    - CATKIN_SKIP_TESTING=1
+    - PRERELEASE=1
   matrix:
     - ROS_DISTRO="kinetic"
     - ROS_DISTRO="melodic"
+    - ROS_DISTRO="noetic"
+    - ROS_DISTRO="foxy"
 install:
-  - git clone --quiet --depth 1 https://github.com/ros-industrial/industrial_ci.git .ci_config
+  - git clone --quiet --depth 1 https://github.com/ros-industrial/industrial_ci.git .ci_config -b master
 script:
   - source .ci_config/travis.sh

package.xml

@@ -1,12 +1,12 @@
 <?xml version="1.0"?>
 <?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
-<package format="2">
+<package format="3">
   <name>apriltag</name>
   <version>3.1.2</version>
   <description>AprilTag detector library</description>
 
   <maintainer email="[email protected]">Max Krogius</maintainer>
-  <maintainer email="w.merkt+oss@gmail.com">Wolfgang Merkt</maintainer>
+  <maintainer email="opensource@wolfgangmerkt.com">Wolfgang Merkt</maintainer>
 
   <author email="[email protected]">Edwin Olson</author>
   <author email="[email protected]">Max Krogius</author>
@@ -15,6 +15,9 @@
   <url>https://april.eecs.umich.edu/software/apriltag.html</url>
 
   <buildtool_depend>cmake</buildtool_depend>
+  <!-- Do not install numpy for Python2, so it won't build a Python3 wrapper when Python2 is ROS-default -->
+  <!--<build_depend condition="$ROS_PYTHON_VERSION == 2">python-numpy</build_depend>-->
+  <build_depend condition="$ROS_PYTHON_VERSION == 3">python3-numpy</build_depend>
 
   <export>
     <build_type>cmake</build_type>