Remove use of integral attributes on the standard library Decimal class
Remove use of integral attributes on the standard library Decimal class

The method ._is_special had to be left, because Python 2.5 does not have the
equivalent .is_finite().  The private methods had to be removed because they
are no longer there in Python 3.3.

VaibhavAgarwalVA/sympy,Gadal/sympy,lindsayad/sympy,ga7g08/sympy,madan96/sympy,emon10005/sympy,Titan-C/sympy,kumarkrishna/sympy,AunShiLord/sympy,VaibhavAgarwalVA/sympy,emon10005/sympy,AkademieOlympia/sympy,Davidjohnwilson/sympy,saurabhjn76/sympy,wanglongqi/sympy,diofant/diofant,shikil/sympy,mcdaniel67/sympy,lidavidm/sympy,chaffra/sympy,bukzor/sympy,jamesblunt/sympy,grevutiu-gabriel/sympy,liangjiaxing/sympy,souravsingh/sympy,jbbskinny/sympy,jerli/sympy,sahilshekhawat/sympy,mafiya69/sympy,Designist/sympy,kaichogami/sympy,jaimahajan1997/sympy,mcdaniel67/sympy,hrashk/sympy,Gadal/sympy,AkademieOlympia/sympy,farhaanbukhsh/sympy,debugger22/sympy,garvitr/sympy,souravsingh/sympy,postvakje/sympy,madan96/sympy,toolforger/sympy,kaushik94/sympy,rahuldan/sympy,ahhda/sympy,meghana1995/sympy,farhaanbukhsh/sympy,MechCoder/sympy,rahuldan/sympy,yukoba/sympy,moble/sympy,AunShiLord/sympy,jbbskinny/sympy,wyom/sympy,yashsharan/sympy,wanglongqi/sympy,asm666/sympy,aktech/sympy,toolforger/sympy,skidzo/sympy,cccfran/sympy,vipulroxx/sympy,vipulroxx/sympy,hrashk/sympy,shipci/sympy,hrashk/sympy,Vishluck/sympy,Mitchkoens/sympy,shipci/sympy,yashsharan/sympy,abhiii5459/sympy,kevalds51/sympy,abloomston/sympy,kevalds51/sympy,sahilshekhawat/sympy,mafiya69/sympy,iamutkarshtiwari/sympy,sahilshekhawat/sympy,jaimahajan1997/sympy,sahmed95/sympy,meghana1995/sympy,liangjiaxing/sympy,abhiii5459/sympy,grevutiu-gabriel/sympy,maniteja123/sympy,Arafatk/sympy,skidzo/sympy,Arafatk/sympy,Titan-C/sympy,ga7g08/sympy,kaichogami/sympy,atsao72/sympy,kmacinnis/sympy,MridulS/sympy,oliverlee/sympy,Sumith1896/sympy,yukoba/sympy,abloomston/sympy,Designist/sympy,lidavidm/sympy,drufat/sympy,toolforger/sympy,maniteja123/sympy,dqnykamp/sympy,dqnykamp/sympy,wyom/sympy,shipci/sympy,Vishluck/sympy,cccfran/sympy,chaffra/sympy,jaimahajan1997/sympy,dqnykamp/sympy,Davidjohnwilson/sympy,beni55/sympy,aktech/sympy,saurabhjn76/sympy,pbrady/sympy,Curious72/sympy,garvitr/sympy,asm666/sympy,moble/sympy,ChristinaZografou/sympy,Sumith1896/sympy,ahhda/sympy,AunShiLord/sympy,abloomston/sympy,jbbskinny/sympy,souravsingh/sympy,lindsayad/sympy,sunny94/temp,atreyv/sympy,kevalds51/sympy,VaibhavAgarwalVA/sympy,hargup/sympy,ChristinaZografou/sympy,asm666/sympy,MridulS/sympy,sampadsaha5/sympy,wyom/sympy,cswiercz/sympy,kumarkrishna/sympy,grevutiu-gabriel/sympy,oliverlee/sympy,bukzor/sympy,liangjiaxing/sympy,shikil/sympy,ChristinaZografou/sympy,skirpichev/omg,aktech/sympy,jerli/sympy,atreyv/sympy,sampadsaha5/sympy,drufat/sympy,Designist/sympy,flacjacket/sympy,Sumith1896/sympy,vipulroxx/sympy,shikil/sympy,iamutkarshtiwari/sympy,kaushik94/sympy,MridulS/sympy,postvakje/sympy,AkademieOlympia/sympy,sunny94/temp,Shaswat27/sympy,hargup/sympy,iamutkarshtiwari/sympy,meghana1995/sympy,atsao72/sympy,pandeyadarsh/sympy,Gadal/sympy,skidzo/sympy,MechCoder/sympy,abhiii5459/sympy,debugger22/sympy,saurabhjn76/sympy,maniteja123/sympy,sampadsaha5/sympy,pbrady/sympy,beni55/sympy,kaichogami/sympy,kaushik94/sympy,debugger22/sympy,mcdaniel67/sympy,beni55/sympy,pandeyadarsh/sympy,pandeyadarsh/sympy,amitjamadagni/sympy,drufat/sympy,Curious72/sympy,emon10005/sympy,rahuldan/sympy,mafiya69/sympy,Davidjohnwilson/sympy,Mitchkoens/sympy,jamesblunt/sympy,cccfran/sympy,kmacinnis/sympy,amitjamadagni/sympy,Curious72/sympy,yashsharan/sympy,cswiercz/sympy,pbrady/sympy,cswiercz/sympy,MechCoder/sympy,ahhda/sympy,jamesblunt/sympy,hargup/sympy,postvakje/sympy,chaffra/sympy,bukzor/sympy,wanglongqi/sympy,kumarkrishna/sympy,oliverlee/sympy,sahmed95/sympy,madan96/sympy,atreyv/sympy,jerli/sympy,garvitr/sympy,srjoglekar246/sympy,moble/sympy,yukoba/sympy,Shaswat27/sympy,Titan-C/sympy,atsao72/sympy,Shaswat27/sympy,Arafatk/sympy,sunny94/temp,ga7g08/sympy,Mitchkoens/sympy,Vishluck/sympy,lindsayad/sympy,kmacinnis/sympy,sahmed95/sympy,farhaanbukhsh/sympy,lidavidm/sympy