Add an installation instruction that people (like myself) may forget to do.

If you don't do this step, mentio won't work, leading to much frustration.
Removed misleading doc.

I removed this line from the doc for mentio-search:

    The scope property referenced by <code>items</code> can be a promise.

In fact, it cannot be a promise. If you try setting it to a promise, the
template will try to iterate over it. Instead, the mentio-search function should
just set the items property as soon as it has it.

The only promise-related code in mentio is for mentio-select, not mentio-search.
Error package in the main

It is wrong that what should be put in the main is a javascript file
in some cases, there's no selection

Need to protect against no selection in the browser.
bug fixes
Merge pull request #48 from alejonext/patch-1

Error package in the main
Merge pull request #38 from JonathanAquino/fix-promise-doc

Removed misleading doc.
Merge pull request #37 from JonathanAquino/document-installation

Add an installation instruction that people (like myself) may forget to do.
added main property
Fix IE9 by dropping support for older IE
Merge pull request #50 from hightower/bugfix/eg-ie9-support

Fix IE9 by dropping support for older IE
whitespace changes
Revert "Fix IE9 by dropping support for older IE"
Merge pull request #51 from jeff-collins/revert-50-bugfix/eg-ie9-support

Revert "Fix IE9 by dropping support for older IE"
Remove old IE code path
Merge pull request #52 from hightower/bugfix/eg-ie9-support

Remove old IE code path
ie9
Hack top position for dropup menu
Comment error message
Hide menu when space key pressed