Various performance improvements in PJSIP: (1) optimizing for common case to minimize stricmp() calls (header names, method, URI schemes), (2) added functionality in scanner to parse and unescape in-place, (3) etc.. 

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@583 74dad513-b988-da41-8d7b-12977e46ad98
13 files changed