Add relaxing option "eqnull" to JSHint config file.

This option suppresses warnings about == null comparisons. Such comparisons are often useful when you want to check if a variable is null or undefined.

See #80 for opinions about this.
Add time-grunt to measure grunt's execution time

Closes #72.
Closes #83.
Consistently use about as 2nd page
Simplify templates markup (closes #81)
Update to Apache Server Configs v2.1.0
updated CHANGELOG
Update CHANGELOG, Update Htaccess
Update Sass-Mixins and npm deps
Update Bower packages sass-mixins to 0.7.1 and require.js to 2.1.10
Update 404 to reduce uncopressed size

See https://github.com/h5bp/html5-boilerplate/commit/3da500d5e591c7b38addd3d7e3bc5e7d57ca49d7
for more information.

/ht @alrra
Update changelog
Add `Disallow:` to `robots.txt`

The addition of `Disallow:` is made in order to be compliant with:

  * the `robots.txt` specification (http://www.robotstxt.org/), which
    specifies that: "At least one Disallow field needs to be present
    in a record"
  * what is suggested in the documentation of most of the major search
    engines, e.g.:

      - Baidu:  http://www.baidu.com/search/robots_english.html
      - Google: https://developers.google.com/webmasters/control-crawl-index/docs/getting_started
                http://www.youtube.com/watch?v=P7GY1fE5JQQ
      - Yandex: help.yandex.com/webmaster/controlling-robot/robots-txt.xml

Besides the addition specified above, this commit also adds a comment making
it clear to everyone that the directives from the `robots.txt` file allow all
content on the site to be crawled.

Ref h5bp/html5-boilerplate#1487.
Further optimize `apple-touch-icon-precomposed`

  before:         1226 B
  after:          1076 B
  ──────────────────────
  reduction:      -150 B [-12.23%]
Add Catalin to authors
Update year license.md
v1.1.0
Update to Apache Server Configs v2.2.0
Update `.editorconfig`

Change the `indent_size` value for `.htaccess` to 4, as through
the `.htaccess` file, 4 spaces are used for code indentation.
Bugfix for #89
Update CHANGELOG