Dependency rollback on slf4j, so that project will fit into grails 1.3 series nicely with out slf4j version conflicts;  Also update version of log4j to 1.2.16 where the pom is in better shape
Dependency rollback on slf4j, so that project will fit into grails 1.3 series nicely with out slf4j version conflicts;  Also update version of log4j to 1.2.16 where the pom is in better shape

gfelisberto/asterisk-java,filius/asterisk-java,milesje/asterisk-java,gfelisberto/asterisk-java,gfelisberto/asterisk-java,elara-leitstellentechnik/asterisk-java,michaelrice/asterisk-java,scgm11/asterisk-java,polachok/asterisk-java,filius/asterisk-java,alexscott/asterisk-java,pk1057/asterisk-java,yamajun/asterisk-java,filius/asterisk-java,thuliumcc/asterisk-java,elara-leitstellentechnik/asterisk-java,michaelrice/asterisk-java,alexscott/asterisk-java,seanbright/asterisk-java,trulywireless/asterisk-java,milesje/asterisk-java,alexscott/asterisk-java,jaunis/asterisk-java,seanbright/asterisk-java,yamajun/asterisk-java,trulywireless/asterisk-java,thuliumcc/asterisk-java,thuliumcc/asterisk-java,filius/asterisk-java,polachok/asterisk-java,xvart/asterisk-java,asterisk-java/asterisk-java,polachok/asterisk-java,michaelrice/asterisk-java,gfelisberto/asterisk-java,trulywireless/asterisk-java,asterisk-java/asterisk-java,jaunis/asterisk-java,elara-leitstellentechnik/asterisk-java,trulywireless/asterisk-java,pk1057/asterisk-java,elara-leitstellentechnik/asterisk-java,thuliumcc/asterisk-java,010Minds/asterisk-java,010Minds/asterisk-java,michaelrice/asterisk-java,010Minds/asterisk-java,polachok/asterisk-java,xvart/asterisk-java,jaunis/asterisk-java,jaunis/asterisk-java,pk1057/asterisk-java,milesje/asterisk-java,scgm11/asterisk-java