misc: add code generator script; regenerate compat.h; fix #21
Merge pull request #20 from Pyrrvs/CurlMultiEnhancement

Curl multi enhancement - support of curl_multi_fdset and curl_multi_info_read.
fix regexp bug in codegen.py, regenerate const_gen.go
add .travis.yml
add .travis.yml
add build/test command to .travis.yml
README: add travis-ci pic
change multi.Fdset and multi.Info_read() api.
Use easy.CurlInfo type instead of C.CurlInfo