Update README.md
switch to js templates(closes #21) and run files through lodash templating

templating will help for future additions as well as it was needed with the current state of ember-cli since the ENV is now AppNameENV so I needed to reference it with that
update readme
remove coffee as a dependency
update readme with working off master section
add modal example
add format-date helper
better error message when runCommand util fails
fix default symlink path changed in https://github.com/stefanpenner/ember-cli/pull/1034
always link to dist since tmp/output is no longer generated anymore
fix global install command
switch to ember-cli-addon for ember simple auth
pascalize name so that ENV var is created correctly in generated templates
Merge pull request #25 from leonidez/fix_env_name

pascalize name so that ENV var is created correctly in generated templat...
Merge pull request #24 from leonidez/fix_simple_auth

switch to ember-cli-addon for ember simple auth
remove extra commented lines in open command
add link command, refs #27
add optional options to runCommand
replace link with prepare command. fixes #27
add references to ember-cli where it was used and add credits section, refs #29