Cleaned up build scripts and fixed jshint

Makefile

@@ -1,16 +1,17 @@
 PACKAGE = libgit2
 NODEJS = $(if $(shell test -f /usr/bin/nodejs && echo "true"),nodejs,node)
+NODEBLD = node-waf
 
 BASE = .
 LIBPATH = /usr/local/lib:$(BASE)/vendor
 
-all: clean build lint
+all: buildbindings lint
 
-build:
-	node-waf configure build
+buildbindings:
+	$(NODEBLD) build
 
 install:
-	node-waf install
+	$(NODEBLD) install
 
 clean:
 	rm -rf ./build

configure

@@ -0,0 +1 @@
+node-waf configure

util/hint-check.js

@@ -1,7 +1,9 @@
-var nodejshint = require( './nodejshint.js' ).test;
+var nodejshint = require( './nodejshint.js' ).test,
 
-nodejshint( [ 'lib/index.js', 'lib/ref.js', 'lib/repo.js', 'lib/error.js' ], function( failures ) {
-  if( !failures ) {
+files = [ 'lib/index.js', 'lib/ref.js', 'lib/repo.js', 'lib/error.js' ];
+
+nodejshint( files, function( failures ) {
+  if( !files.length ) {
     process.exit( 0 );
   } else {
     process.exit( 1 );

wscript

@@ -18,13 +18,13 @@ def configure(conf):
   conf.check_tool('compiler_cxx')
   conf.check_tool('node_addon')
 
-  os.chdir('vendor/libgit2')
-  Popen('python waf configure build-shared', shell=True).wait()
-
   conf.env.append_value('LIBPATH_GIT2', abspath('build/shared'))
   conf.env.append_value('LIB_GIT2', 'git2')
 
 def build(bld):
+  os.chdir('vendor/libgit2')
+  Popen('python waf configure build-shared', shell=True).wait()
+
   obj = bld.new_task_gen('cxx', 'shlib', 'node_addon')
   obj.target = 'nodegit2'
   obj.source = 'src/base.cc src/error.cc src/reference.cc src/repo.cc src/commit.cc src/oid.cc src/revwalk.cc'