Fix issue 117: [jain-sip.js]: Conditional braces missing after if in SipRequest.js
Fix issue 112:[jain-sip.js]: Patch for /src/main/javascript/jain-sip/gov/nist/sip/message/SIPRequest.js
Fix issue 110: [jain-sip.js] Duplicated JS class (ConnectionField, ContentLength, KeyField) in jain-sip.js
Fix issue 110:[jain-sip.js] Duplicated JS class (ConnectionField, ContentLength, KeyField) in jain-sip.js