Update installation instructions to include bazel and remove outdated… (#4171)

java/doc/installation.rst

@@ -17,22 +17,19 @@ For Ubuntu users, run the following commands:
 ::
 
   sudo apt-get update
-  sudo apt-get install -y maven cmake pkg-config build-essential autoconf curl libtool unzip flex bison psmisc python # we install python here because python2 is required to build the webui
+  sudo apt-get install -y maven build-essential curl unzip psmisc python # we install python here because python2 is required to build the webui
 
   # If you are not using Anaconda, you need the following.
   sudo apt-get install python-dev  # For Python 2.
   sudo apt-get install python3-dev  # For Python 3.
 
-  # If you are on Ubuntu 14.04, you need the following.
-  pip install cmake
-
   pip install cython==0.29.0
 
 For macOS users, run the following commands:
 ::
 
   brew update
-  brew install maven cmake pkg-config automake autoconf libtool openssl bison wget
+  brew install maven wget
 
   pip install cython==0.29.0
 
@@ -45,6 +42,9 @@ Then we can start building Ray with the following commands:
   git clone https://github.com/ray-project/ray.git
   cd ray
 
+  # Install Bazel.
+  ci/travis/install-bazel.sh
+
   # build native components
   ./build.sh -l java