EMBPD00115358fix-TabBaar crash on switchtab(-1)
EMBPD00115358fix-TabBaar crash on switchtab(-1)

EMBPD00115358fix-TabBaar crash on switchtab(-1).
Check has been added for tabbar valid index.
rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,UIKit0/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,UIKit0/rhodes,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,rhosilver/rhodes-1,rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,rhosilver/rhodes-1,rhosilver/rhodes-1,louisatome/rhodes,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes,louisatome/rhodes,louisatome/rhodes,UIKit0/rhodes