Covert a string to a title format, i.e. each word is capitalized in the first letter with rest as low-cased.

ConvertTo-StringTitle.ps1

<#
.SYNOPSIS
  Capitalize the first letter of each word in a string 
.DESCRIPTION
  Capitalize the first letter of each word in a text string, and make the rest of each word to be lower-cased 
.Input
  a string can be piped into this function.
.PARAMETER Text
  The $Text is the string which will be converted with a capitalized initial letter.
  Pipeline input is accepted
.EXAMPLE
  ConvertTo-StringTitle -Text "hELLo, wOrlD !"
  you will get
  "Hello, World !"

.Example
 "hEllo, wOrlD !" | ConvertTo-StringTitle
 you will get the same as the previous example
 "Hello, World !"
 .Note
  Sept 23, 2015 by jeffrey_yao at hotmail.com
#>
function ConvertTo-StringTitle 
{
    [CmdletBinding()]
    param (
        [Parameter(ValueFromPipeline)]
        [string]$Text=''
    )
    (Get-Culture).TextInfo.ToTitleCase($Text.ToLower());
}