fullpage.js 2.7.4

- Fixed bug with responsiveHeight alvarotrigo#1567
- Fixed bug that prevented the fire of callbacks when using
scrollBar:true alvarotrigo#1556
- Fixed bug that set fitToSection:true when using menu or bullet
navigation alvarotrigo#1561
- Removed warning regarding requestAnimationFrame prefix alvarotrigo#1559

- Fixed critical bug with touch devices alvarotrigo#1553

- Fixed critical bug with touch devices alvarotrigo#1553

- Fixed bug with Firefox scrolling randomly alvarotrigo#1534

- Fixed bug causing a wrong height calculation sometimes alvarotrigo#1502
- Fixed bug 'fitToSection: false' not being accepted alvarotrigo#1499
- Horizontal trackpad movements won't fire vertical scrolling alvarotrigo#1520
- Fixed bug onLeave firing twice in Firefox and IE when cancelling the movement alvarotrigo#1510
- Added the fp-auto-scrolling functionality for users using scss alvarotrigo#1496

- Fixed callbacks after resize: alvarotrigo#1442

Fixed bugs related with Chrome 44 bug number 513206

- Fixed bug with fitToSection which stopped working alvarotrigo#1465
- Fixed bug with silentMove which stopped working alvarotrigo#1476 
- Fixed bug with resizing fullpage.js alvarotrigo#1442

Fixed additional bugs:
- Fixed bug smaller sections alvarotrigo#1489
- Fixed bug in Firefox when using Ctrl+T to open a new tab alvarotrigo#1472 
- Removed unnecessary code alvarotrigo#1485

- Updated version.

- Fixed bug: vertical navigation alvarotrigo#1426

- Fixed bug: lazy load of videos alvarotrigo#1374
- Fixed bug: Destroy() doesn't clear html/body classes and inline styles alvarotrigo#1403
- New feature: smaller sections alvarotrigo#1263
- Now anchors can be defined in the HTML markup alvarotrigo#1380
- New option 'fitToSectionDelay' alvarotrigo#1391

- Lazy load now also working for slide alvarotrigo#1338

- afterRender returns now the container element rather than `undefined` 
- New warning message when using `scrolLBar` and `scrollOverflow`. alvarotrigo#1352
- Now timeouts are being cleared on destroy alvarotrigo#1329
- Removed warning error when fullPage.js selector doesn't exist on the page alvarotrigo#1284
- Updated documentation with a few clarifications alvarotrigo#1306 alvarotrigo#1354
- Improvement for Windows and IE 11 in touch devices alvarotrigo#1245 alvarotrigo#160

- Fixed mousewheel for old firefox versions

- Fixed bug with slimScroll alvarotrigo#1277
- Fixed bug when using `scrollBar:true` and opening a new tab (ctrl + t)
- Added new option `lockAnchors` to lock anchors alvarotrigo#1198
- Added new option `responsiveHeight` alvarotrigo#1256 
- Added new option `responsiveWidth` replacing the old option `responsive`
- Added new function `setLockAnchors` alvarotrigo#1198
- Modified `setKeyboardScrolling` function to lock keyboard scrolling in specific directions alvarotrigo#1236
- Added new functionality to cancel the scroll before it takes place alvarotrigo#340
- Callback `onSlideLeave` has now a new parameter `nextIndex` alvarotrigo#1235
- Single slide inside section won't show navigation bullets alvarotrigo#1227
- Added a new functionality to lazy load images, videos and audio elements. alvarotrigo#1220
- Added a new functionality to play and stop videos/audios when they enter in the viewport

- Fixed bug using `scrollOverflow:true` and `autoScrolling:false` alv…

…arotrigo#553 alvarotrigo#1037

- Fixed bug using zoom (ctrl + mouse) alvarotrigo#55
- `afterLoad` callback will now fire on page render as well alvarotrigo#1147
- Fixed bug with setAllowScrolling right and left
- Fixed bug which fired multiple callbacks when using continuousVertical
- Added new method `$.fn.fullpage.silentMove` to scroll with no animation alvarotrigo#831 alvarotrigo#747
- Window resize has no animation now alvarotrigo#64
- Added npm installation to the documentation 
- Improved documentation about `Creating links to sections or slides` and `anchors`
- Added some more comments in the code