Remove old code

Kadira.sendSavedErrors is replaced by Kadira.errors._flushErrors
SetInterval is run when creating a new error model
Meteor._debug handle stack concat to message
Format message, stack to match original

Add new line at beginning of stack
Pass the original stack to original Meteor._debug
Merge pull request #60 from mnmtanish/fix-ie8-ie9-bugs

Multiple Enhancements