Inconsistent separator handling

[te1]

Handling of decimal separator doesn't quite work if you want to use a comma instead of a dot.

Steps to reproduce

• Go to https://kevinongko.github.io/vue-numeric
• Select "use '.' as separator" (this is the thousand separator)
• Enter Value "1,2" (with a comma) and leave (blur) input
• Focus input, it now says "1.2" (with a dot) but should be "1,2" (with a comma)
• Add 3 to the input and leave (blur) input
• Value is now 123.0 but should be 1.23

I got it to work by changing the the following

onFocusHandler () {
  this.amount = accounting.formatNumber(this.valueNumber, {
    precision: Number(this.precision),
    decimal: this.decimalSeparator,
    thousand: ''
  })
}

but this breaks #26

[te1]

It may not be the most elegant solution but this works for me without negative side effects so far:

onFocusHandler () {
  this.amount = this.valueNumber.toString().replace('.', this.decimalSeparator)
}

[wagnereliakim]

@te1 I found the same problem.
Your las solution works fine, but I think that we can simplify by calling the existing function for this.

onFocusHandler () {
  this.amount = this.format(this.valueNumber)
}

[kevinongko]

Should be fixed in 2.2.3