add binder files #3

binder/apt.txt

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+openjdk-8-jre
+lsof

binder/postBuild

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+#!/bin/bash
+set -e
+
+# Install bash_kernel https://github.com/takluyver/bash_kernel
+python -m bash_kernel.install
+
+# Install go-task https://github.com/go-task/task
+wget -q https://github.com/go-task/task/releases/download/v3.2.2/task_linux_amd64.tar.gz
+tar -xzf task_linux_amd64.tar.gz
+mkdir -p $HOME/.local/bin
+mv task $HOME/.local/bin/
+
+# Run install task to download OpenRefine and openrefine-client
+task install

binder/requirements.txt

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+jupyter-server-proxy==1.5.3
+bash_kernel==0.7.2