Mentioning MultiDb in addons.markdown

Update addons.markdown - add GherkinParam

New extension Gherkin Param

As discussed on Codeception/Codeception#1634.
Adding brief description of Red Matter's MultiDb ...

Add EventsScripting extension

Bumped up required version of PHP

Update 2016-03-11-even-more-features-of-codeception.markdown

5.3 as requirement at the top of quick start page can be misleading, so I changed it to 5.4.

fix small typo

Make S3 filesystem header and h4 like the rest

Adding S3 Filesystem module

Update 02-GettingStarted.md

Correcting Bootstrap container usage.

[BUGFIX] Typo "interaface" on addons page

# Conflicts:
# install.html

Fix typo

PHP 5.4 build is recommended for PHP 5.5 too

Prettify ‘thanks’ download pages.

Removed the container from around bootstrap.html 'content'...

<div class="container"> {{ conte...

Restore 'Refine UX'

+ replace Google Search with List.js live search
+ drop 'Philosopher' font

...not sure if you w...

- remove duplicate script links

sidenav fix

- temp fix
- todo: something about the way the toc.js is implemented in the layout requires the ...

Revert "Refine UX for new and current users."

Refine UX for new and current users.

+ move js scripts to bottom for optimum loading
+ comments
+ re-indent lines

- damn ol' fashion css!

+ with Bootstrap 3.3.6 this was causing the navbar to disappear
+ todo: hero unit needs re-work

+ improve Bootstrap html (add rows-cols, remove unneeded <code>)
+ split layout col-9, col-3 (si...

+ quick check around site shows UI is ok

+ add Installation
+ move up Installation and Changelog

+ fix sizing of logo (slightly bigger)
+ ...then a bunch of padding css can be removed

+ fix Bootstrap html
+ re-organize nav links, cleaner, more focused.

Home page improvements.

+ fixed un-contained main navbar
+ touch-up calls to action
+ fixed floating twitter ’follow’
+ ...

CSS tweaks: word-break, responsive lists

+ fix long strings breaking out of the containers
+ tweak lists to use available space in (xs,sm...