M zero to master for v1.10.0

[internetmosquito]

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Release 1.10.0 - 2019/06/09

NEW FEATURES:

• Added new print roster button on lab list selector view
• Replaced several PDF files in Binder so they're updated for Summer 2019
• Fixed an issue that was blocking going back to lab list from the absences view

NOTES:

• None

CHANGES:

• INTERNAL API CHANGES:
  • None

BUG FIXES:

• https://github.com/wizbots/labtab/issues/130
• https://github.com/wizbots/labtab/issues/127
• https://github.com/wizbots/labtab/issues/129