Merge pull request #7 from AriX/master

Add support for Mac push certificates
update ioSock
remove ioSock
remove retry on read and write
tweak ssl connection
rename menu items
up version
fix hub delegate on failed fetch failed
add identity inspection tool
fix certificate leak
add check on multiple certs in p12
fix mem leak
add tool support for multiple identities in p12
rename sandbox cert
up version
add api redesign
update nwlogging
fix demo
update readme
ignore read error on flush failed