Fix mobile keyboard issue and noImmediatePrefix broken issue

#588
#582
#578

Trigger prefix onFocus when noImmediatePrefix is passed in

#399

Add swapHiddenInput option to enable a hidden input holding raw value

#397

Fix on focus one character value prefix issue

#363

Fix signBeforePrefix issue in get prefix function

#525

Fix crashes with React default value prop passing in

#568
#570

Add tailPrefix (postfix) option for numeral

#489

Fixes and PR

#504 Add UnionPay 8-series bin support
#511 Pass the name of the input in the event
#527 #510 Remove componentWillReceiveProps usage for concurrent mode
#400 #518 Add null check when updating value

Fix noImmediatePrefix broken issue

#455

Fix react component event register issue

Fix js issue introduced by PR #479