updated docs for 3.5.0 #142

	name: Build and Test
	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-20.04
	env:
	FC: gfortran-9
	CC: gcc-9
	CXX: g++-9

	steps:

	- name: install-dependencies
	run: \|
	sudo apt-get install libpng-dev zlib1g-dev libjpeg-dev

	- name: checkout-jasper
	uses: actions/checkout@v2
	with:
	repository: mdadams/jasper
	path: jasper
	ref: version-2.0.16

	- name: cache-jasper
	id: cache-jasper
	uses: actions/cache@v2
	with:
	path: ~/Jasper
	key: jasper-${{ runner.os }}-${{ hashFiles('jasper/VERSION') }}

	- name: build-jasper
	if: steps.cache-jasper.outputs.cache-hit != 'true'
	run: \|
	cd jasper
	mkdir cmake_build
	cd build
	cmake .. -DCMAKE_INSTALL_PREFIX=~/Jasper
	make -j2
	make install

	- name: checkout
	uses: actions/checkout@v2
	with:
	path: g2
	submodules: true

	- name: build
	run: \|
	cd g2
	mkdir build
	cd build
	cmake .. -DJasper_ROOT=~/Jasper
	make -j2

	- name: test
	run: \|
	cd $GITHUB_WORKSPACE/g2/build
	make test

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