Compatibility fixes for Syn, Firefox 55.0.1, Chrome 55, IE 11 ...

Added Pointer Events and Touch Events to click

• During syn's loading, it will check the browser for natively-supported events
• Syn will then use those events, in addition to the normal focus and mouse events, when clicking
• Increases support to include Pointer Events (Chrome 55+, IE 11, Edge) and Touch Events (Mobile Safari) for click
  • If this goes well, we will begin rolling it out to all mouse interactions in subsequent releases
• Fixes: #25

Resolved error during browser compatibility check when typing into number inputs

• Fixes: #122
• This allows the use of FireFox 55.0.1+ with Number Inputs