Merging dev branch

Merge pull request alvarotrigo#2023 from alvarotrigo/dev

Mergin Dev branch

Merge pull request alvarotrigo#1958 from alvarotrigo/dev

Dev

Merge pull request alvarotrigo#1845 from alvarotrigo/dev

- Merging dev branch (fullpage.js 2.7.8)

Merge pull request alvarotrigo#1794 from alvarotrigo/dev

Mergin Dev branch

Merge remote-tracking branch 'refs/remotes/origin/dev'

Merge pull request alvarotrigo#1663 from alvarotrigo/dev

- Upgrading version

Merge pull request alvarotrigo#1663 from alvarotrigo/dev

- Upgrading version

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