parser: add variable to keep context for incoming auth-related messages with same value
parser: add variable to keep context for incoming auth-related messages with same value

jskirst/sftp-to-http,mcanthony/ssh2,ianscrivener/ssh2,mscdex/ssh2,Student007/ssh2,mafintosh/ssh2,24hr/ssh2,24hr/ssh2,laktek/ssh2-chromeify,mafintosh/ssh2,mcanthony/ssh2,jskirst/sftp-to-http,onilabs/ssh2,mscdex/ssh2,Drooids/ssh2,Drooids/ssh2,ianscrivener/ssh2,onilabs/ssh2,mscdex/ssh2,laktek/ssh2-chromeify,mscdex/ssh2,mafintosh/ssh2,Student007/ssh2,ArielAbreu/ssh2,ArielAbreu/ssh2,laktek/ssh2-chromeify