Complete 2015 minimal downloads

[Daniel-at-github]

This conferences from 2015 have it's minimal download version uploaded:

• [x] PyAstro 2015 #512
• [x] PyData Berlin 2015 #403
• [x] PyData Dallas 2015 #404
• [x] PyCon JP 2015 #44
• [x] PyData NYC 2015 #402
• [x] PyCon Philippines 2015 #615

This conferences from 2015 have it's full version uploaded:

• [ ] PyAstro 2015
• [ ] PyData Berlin 2015
• [ ] PyData Dallas 2015
• [ ] PyCon JP 2015
• [ ] PyData NYC 2015
• [ ] PyCon Philippines 2015