[FIXED-434][3.1.1-beta] ArrayReader ignores successProperty value

[extjs@peacetech.com]

JsonReader checks fo successProperty and fire exception event but ArrayReader overrides readRecords method and completely omits successProperty handling

[extjs@peacetech.com]

forgot to mention that it is latest code in SVN as of 1/15/10 that makes it 3.1.1 I guess

[Jamie Avins]

Added in svn 5929. This will go into 3.1.1.