[OE-2824] fixed bug where posting the previous operations widget with no operation would result in a crash.
+ documentation
Merge branch 'release/1.4' of github.com:openeyes/OpenEyes into release/1.4
Alert dialog: fixed passing in custom options
Merge branch 'release/1.4' into feature/automation
90% of Examination coding complete
Examination feature, Context and PageObjects coded