Improve local development

[mcristina422]

Problems

While working on PR #44 I came across some problems with the Makefile and configure script.

The golangci-lint step does not properly install the linter. It follows the steps here but the Makefile doesn't properly execute it. It attempts to install to /bin due to improper syntax here
It can be fixed by changing the $() to $$()

golangci-lint:
	@ if [ ! $$(which golangci-lint) ]; then \
		curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $$(go env GOPATH)/bin v1.15.0; \
	fi

The install-kubebuilder-tools step fails.
It tries to install to /usr/local/ which requires elevated privileges. Following the setup instructions here they use sudo and add /usr/local/kubebuilder/bin to $PATH as well

Workarounds

Working from a Mac I needed to do a few extra steps

The configure script is dependent on Bash 4 while Macs come with Bash 3.2 by default https://github.com/pusher/wave/blob/master/configure#L3

I was able to upgrade painlessly with brew update && brew install bash
I manually installed golangci-lint with curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.15.0 (or apply the fix above)
I manually installed kubebuilder following the steps here

[mcristina422]

Fixed in #71