Fix Travis CI build in master branch

[JesusMtnez]

Right now, the build is failing because there is some setup missing in master branch.

[juanpedromoreno]

@JesusMtnez Is this still an issue? Thx.

[JesusMtnez]

@juanpedromoreno It seems so. The project is missing the gpg configuration:

Logs from Travis:

$ if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then openssl aes-256-cbc -K $encrypted_ca54c9c78452_key -iv $encrypted_ca54c9c78452_iv -in secring.gpg.enc -out secring.gpg -d; fi
secring.gpg.enc: No such file or directory
139689191102104:error:02001002:system library:fopen:No such file or directory:bss_file.c:398:fopen('secring.gpg.enc','r')
139689191102104:error:20074002:BIO routines:FILE_CTRL:system lib:bss_file.c:400:
The command "if [ "$TRAVIS_BRANCH" = "master" -a "$TRAVIS_PULL_REQUEST" = "false" ]; then openssl aes-256-cbc -K $encrypted_ca54c9c78452_key -iv $encrypted_ca54c9c78452_iv -in secring.gpg.enc -out secring.gpg -d; fi" failed and exited with 1 during .

[juanpedromoreno]

Thanks @JesusMtnez , yeah, seems like we need to generate the keys before releasing. Closing this in favor of #6