[ENH] IntegerPrintOpt-gk ( [cd][er][et][sm] Work correctly and faster; Recommend including. )

[tomkoenig at mindspring.com]

Profiled conde with the old and new versions of the method and compared
output of the old and new versions for a variety of values and bases. 
See results below

Smalltalk garbageCollect.
TimeProfileBrowser onBlock: 
[0 to: 100000 do: [:each | String
		streamContents: [:strm | each  printOn2:   strm base: 6]]]. "old
version of method"
TimeProfileBrowser onBlock: 
[0 to: 100000 do: [:each | String
		streamContents: [:strm | each  printOn:   strm base: 6]]]. "new
version of method"
range        base old timing new timing
0 to: 100000     9    2813		2360
0 to: 100000     7    2909		2389
0 to: 100000     5    3088		2417
0 to: 100000     3    3632		2589
0 to: 100000     2    4668		2883		
-100000 to: 0   9   2547      2445
-100000 to: 0   7   2433     2412
-100000 to: 0   5   2499      2488
-100000 to: 0   2   3092    2905	
1073741824 to: 1073841824  2   19472   8495
1073741824 to: 1073841824  9   8335    6831
-1073841825  to:  -1073741825  2  19251  9263
-1073841825  to:  -1073741825   9	8357  7424
the same range of values and strings matched using the code below.
b_2.		
ok_errors_0.	
-100000 to: 0    do: [:each |
 ((String
		streamContents: [:strm | each printOn:  strm base: b]) =  
 (String
		streamContents: [:strm | each printOn2: strm base: b])) ifFalse: 
		[errors _ errors + 1] ifTrue: [ok _ ok + 1]		
	].
Transcript cr;show:errors; show: ' '; show: ok; show: ' for base: ';
show:b.	













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