Enable Travis-ci

[montefra]

This PR adds a working .travisc.yml file take mixing the astropy-template and the astropy one.

Currently it checks that it is possible to install and run test on linux (with multiple versions) and mac osx (only one case).

[montefra]

@ericmandel : do you get the travis notifications?

[ericmandel]

@montefra Not that I know of. The last notification I got was this (yesterday at 4:18 EST):

@montefra pushed 3 commits.
28c2c48 Use numpy 1.10 with the astropy ltl version
22bdb28 clear docs warnings
cc68f0b Merge remote-tracking branch 'origin/travis' into travis

[montefra]

You would notice. If the email notifications are enabled you get emails from builds@travis-ci.org with a subject like: Errored: montefra/pyds9#13 (travis - 1eb3342). I don't get the mails either. But I was getting them when I had travis enabled on my fork. According to this build notifications are sent to

committer and the commit author, if they are members of the repository (that is, they have push or admin permissions for public repositories

Also this says that the mail are sent only if the email in the commit is the same as the github mail (it's my case). However I can force travis to send notifications only to me.

If you don't want to be notified any time I break something, maybe is better this way :grimacing:

[ericmandel]

@montefra I probably don't need to see these ... and if you can save me from receiving extra emails that I don't need to deal with, I'll be grateful! But of course, I'm here to help ...

[montefra]

Sounds reasonable. I'll add myself as only receiver for not. Let's see how it go.

[montefra]

Finally after many iterations, I managed to make travis happy. I'll soon merge this into trunk and move to windows build and installation via appveyor.

[ericmandel]

Very nice work ... this will be helpful in the future. DS9/Python users all owe you gratitude for taking this on!

[montefra]

I should have done this long ago... Anyway better late than never.