Merge tag 'release/v1.0.0beta8' into development

Release v1.0.0beta8

* tag 'release/v1.0.0beta8':
  Version Bump to 1.0.0beta8
Gem upgrades, rspectacular installation, replace RVM with rbenv
Create the 'Duration From Start' strategy
Version Bump to 1.0.0beta9
Merge branch 'release/v1.0.0beta9'

* release/v1.0.0beta9:
  Version Bump to 1.0.0beta9