Add Makefile and supporting NodeJS find or install script

This allows the CSS to be built using the lessc compiler from `npm`. It
also download the necessary WDN template mixin files and the LessHAT 2.

The JS is compressed using uglifyjs from `npm`.

Makefile

+SHELL := /bin/bash
+CURL := curl
+
+# NodeJS Find/Install
+NODE_PATH = $(shell ./find-node-or-install)
+PATH := $(NODE_PATH):$(shell echo $$PATH)
+
+# External Build Tools
+NODE_DIR = node_modules
+LESSC = $(NODE_DIR)/less/bin/lessc
+UGLIFYJS = $(NODE_DIR)/uglify-js/bin/uglifyjs
+
+# Local Vars
+LESS_LIB = www/less/lib
+
+# External Dependencies
+LESSHAT := $(LESS_LIB)/lesshat.less
+WDN_MIXINS := \
+	$(LESS_LIB)/breakpoints.less \
+	$(LESS_LIB)/colors.less \
+	$(LESS_LIB)/fonts.less
+
+WDN_LIB_RAW = https://raw.githubusercontent.com/unl/wdntemplates/master/wdn/templates_4.0/less/_mixins/
+LESSHAT_RAW = https://raw.githubusercontent.com/csshat/lesshat/c8c211b2442734bfc1ae2509ff0ccebdc2e73664/build/lesshat.less
+
+# Built Files
+CSS_OBJ = www/css/search.css
+JS_OBJ = www/js/search.min.js
+
+all: less js
+
+less: $(CSS_OBJ)
+
+js: $(JS_OBJ)
+
+clean:
+	rm -r $(NODE_DIR)
+	rm -r $(LESS_LIB)
+	rm $(JS_OBJ)
+	rm $(CSS_OBJ)
+	
+$(CSS_OBJ): www/less/search.less $(LESSC) $(LESSHAT) $(WDN_MIXINS)
+	$(LESSC) --clean-css $< $@
+	
+$(LESSC):
+	npm install less
+
+$(LESS_LIB)/%.less:
+	@mkdir -p $(@D)
+	$(CURL) -s $(WDN_LIB_RAW)$(@F) -o $@
+
+$(LESSHAT):
+	@mkdir -p $(@D)
+	$(CURL) -s $(LESSHAT_RAW) -o $@
+	
+$(UGLIFYJS):
+	npm install uglify-js
+	
+$(JS_OBJ): www/js/search.js $(UGLIFYJS)
+	$(UGLIFYJS) -c -m -o $@ -p 2 --source-map $(<).map --source-map-url $(<F).map $<
+	
+.PHONY: all less js clean

find-node-or-install

+#!/bin/bash
+##############################################################################
+# Finds the bin directory where node and npm are installed, or installs a
+# local copy of them in a temp folder if not found. Then outputs where they
+# are.
+#
+# Usage and install instructions:
+# https://github.com/hugojosefson/find-node-or-install
+##############################################################################
+
+# Creates temp dir which stays the same every time this script executes
+function setTEMP_DIR()
+{
+  local NEW_OS_SUGGESTED_TEMP_FILE=$(mktemp -t asdXXXXX)
+  local OS_ROOT_TEMP_DIR=$(dirname ${NEW_OS_SUGGESTED_TEMP_FILE})
+  rm ${NEW_OS_SUGGESTED_TEMP_FILE}
+  TEMP_DIR=${OS_ROOT_TEMP_DIR}/nvm
+  mkdir -p ${TEMP_DIR}
+}
+
+# Break on error
+set -e
+
+# Try to find node, but don't break if not found
+NODE=$(which node || true)
+
+if [[ -n "${NODE}" ]]; then
+  # Good. We found it.
+  echo $(dirname ${NODE})
+else
+  # Did not find node. Better install it.
+  # Do it in a temp dir, which stays the same every time this script executes
+  setTEMP_DIR
+  cd ${TEMP_DIR}
+
+  # Do we have nvm here?
+  if [[ ! -d "nvm" ]]; then
+    git clone git://github.com/creationix/nvm.git >/dev/null
+  fi
+
+  # Clear and set NVM_* env variables to our installation
+  mkdir -p .nvm
+  export NVM_DIR=$( (cd .nvm && pwd) )
+  unset NVM_PATH
+  unset NVM_BIN
+
+  # Load nvm into current shell
+  . nvm/nvm.sh >/dev/null
+
+  # Install and use latest 0.10.* node
+  nvm install 0.10 >/dev/null
+  nvm alias default 0.10 >/dev/null
+  nvm use default >/dev/null
+
+  # Find and output node's bin directory
+  NODE=$(which node)
+  echo $(dirname ${NODE})
+fi