tracker issue : CF-3539842

Problem Description:
Dotted key names have a bug. This was introduced in CF9 (the problem is not apparent in CF 8.0.1)

Thanks to Andrew Myers for bringing this to my attention. Details here: http://adamcameroncoldfusion.blogspot.co.uk/2013/04/plutarch-via-andrew-myers-teaches-me.html

Steps to Reproduce:
<p>It's okay to use a dot in a struct key, as long as that is the end of the line, eg.</p>

<cfset plutarch=StructNew()>
<cfset plutarch['lives.antony']="Antony's grandfather was the orator Antonius, who joined the party of Sulla...">
<cfset plutarch['lives.brutus']="Marcus Brutus was a descendant of that Junius Brutus whose bronze statue, with...">
<cfset plutarch['lives.caesar']="The wife of Caesar was Cornelia, the daughter of the Cinna...">
<cfset plutarch['lives.caesar.notes']=StructNew()>
<cfset plutarch['lives.caesar.notes'].one = "Many think that opening paragraphs of this Life, describing the birth and boyhood of Caesar, have been lost.">

<p>It seems all these keys work independently of each other - ie. a dot is a valid character in a struct key.  But what happens now if we assign something to 'lives'?</p>

<cfdump var="#plutarch#">

<cfset plutarch['lives'] = "A series of biographies of famous Greeks and Romans, arranged in pairs to illuminate their common moral virtues and vices...">

<cfdump var="#plutarch#">

<p>Still good....</p>
<p>Or is it?  What if what we want to assign is another struct?</p>

<cfset plutarch['lives'] = StructNew()>

<cfdump var="#plutarch#">

<p>Ooops!</p>

----------------------------- Additional Watson Details -----------------------------

Watson Bug ID:	3539842

External Customer Info:
External Company:  
External Customer Name: Adam Cameron.
External Customer Email:  
External Test Config: My Hardware and Environment details:

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