getting-started: Add a download link for prereleases too

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Remove the beta download link

With syslog-ng 3.6.1 out, the BETA link is irrelevant. Removing the link
and the JavaScript that updated it fixes #17.

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Add 3.6.1 release news

Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
travis-publish-gh-page: shell script should fail when an error occures

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis: GH_TOKEN replaced

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis: enable travis for all branches for debug purposes

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis-publish-gh-page: remove redirection to /dev/null [debug]

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis-publish-gh-page: enable on non-master branch

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis: debug

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>
travis.yml: change token

Signed-off-by: Laszlo Budai <stentor.bgyk@gmail.com>