add travis CI compile check
test different travis script type
update travis
update travis again
update travis for configure
update travis for google curl test
minimize make progress
travis check finish, travis status add to readme
travis curl port change to 8080
google language support & fronend ssl switcher support & issues fixed #10
1. google language can be configured with `google_language en;`
2. if ssl on, frontend links can be forced to http instead of https with `google_ssl off;`
3. ssl option detecting upgraded, the ssl option can be anywhere in the nginx.conf
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