Added Makefile for development.

Makefile

@@ -0,0 +1,27 @@
+# This Makefile is for development only.  It requires cabal-dev.
+# To get started, do 'make prep' and then 'make' or 'make quick'.
+
+.PHONY: prep, all, quick, bench, clean
+all:
+	cabal-dev configure --enable-tests --enable-benchmarks && cabal-dev build
+
+prep: pandoc-types citeproc-hs
+	cabal-dev install-deps --enable-tests --enable-benchmarks
+
+quick:
+	cabal-dev configure --enable-tests --disable-optimization && cabal-dev build
+
+bench:
+	cabal-dev configure --enable-benchmarks && cabal-dev build
+
+clean:
+	cabal-dev clean
+
+pandoc-types:
+	git clone https://github.com/jgm/pandoc-types && \
+	  cabal-dev add-source pandoc-types
+
+citeproc-hs:
+	git clone https://github.com/jgm/citeproc-hs && \
+	  cabal-dev add-source citeproc-hs
+