change gem-project to reflect bundler's recommendations

.gitignore

@@ -1,4 +1,17 @@
 *.gem
+*.rbc
 .bundle
+.config
+.yardoc
 Gemfile.lock
-pkg/*
+InstalledFiles
+_yardoc
+coverage
+doc/
+lib/bundler/man
+pkg
+rdoc
+spec/reports
+test/tmp
+test/version_tmp
+tmp

Gemfile

@@ -1,3 +1,11 @@
-source "http://rubygems.org"
+source 'https://rubygems.org'
 
-gemspec
+# Specify your gem's dependencies in vagrant-vbguest.gemspec
+gemspec
+
+group :development do
+  # We depend on Vagrant for development, but we don't add it as a
+  # gem dependency because we expect to be installed within the
+  # Vagrant environment itself using `vagrant plugin`.
+  gem "vagrant", :git => "git://github.com/mitchellh/vagrant.git", :tag => 'v1.1.2'
+end

Rakefile

@@ -1 +1,11 @@
-require "bundler/gem_tasks"
+require 'rubygems'
+require 'bundler/setup'
+
+# Immediately sync all stdout so that tools like buildbot can
+# immediately load in the output.
+$stdout.sync = true
+$stderr.sync = true
+
+# This installs the tasks that help with gem creation and
+# publishing.
+Bundler::GemHelper.install_tasks