Add skype-button

https://github.com/tomalec/skype-button
Web Component wrapper for Skype URI buttons
Change to ę to e
Correct mainfile path in info.ini
Added latest MixItUp v2.1.6
Merge pull request #1402 from patrickkunka/master

Added latest MixItUp v2.1.6
bootswatch update
Merge pull request #1373 from tomalec/skype-button

Add skype-button
Disable auto-updates for insightjs
Adding the shepherd js library.
Merge pull request #1404 from ppavlov/shepherd

Adding the shepherd js library.
Update project jquery.velocity to 0.11.1
Merge pull request #1405 from jsdelivrbot/jquery.velocity/0.11.1

Update project jquery.velocity to 0.11.1
Adding update.json for globalize js.
Merge pull request #1406 from ppavlov/globalize

Adding update.json for globalize js.
globalize fix
Update project globalize to 1.0.0-alpha.4
Adding the tether js library.
Merge pull request #1408 from jsdelivrbot/globalize/1.0.0-alpha.4

Update project globalize to 1.0.0-alpha.4
Merge pull request #1409 from ppavlov/tether

Adding the tether js library.
Adding the tooltip js library.