Button and style updates
Merge branch 'master' of github.com:waterdotorg/give.Water

* 'master' of github.com:waterdotorg/give.Water: (923 commits)
  Mobile bg image updated for homepage hero
  Homepage banner and button update
  Open source prep
  Open source prep
  Open source prep
  Open source prep
  Merge branch 'master' of github.com:waterdotorg/give.Water
  Merge branch 'master' of github.com:waterdotorg/give.Water
  Open source prep
  Open source prep
  Open source prep
  Open source prep
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  Prepare for open source release
  ...
Merge style changes