Checking for nulls and empty strings, rather than strict comparison.
Making sure session did not change. If using logins, it could be a security risk to have formstates be accepted from old sessions.
Merge pull request #388 from spekary/bugfix-DbBackedFormStateSession

QDbBackedFormState handler will return form states not from the current session. This is a security hole if logins are being used to access certain pages.
Merge pull request #387 from spekary/bugfix-NullListItem

String version of numbers can't be used to set values on QListControls.
Update INSTALL.md

The broken link to the sample composer config is fixed.
Update INSTALL.md
Issue #365 (Installer needs to be reworked for post-Composer installation.)

The installer is repared for the composer-base qcubed installation.
Update INSTALL.md
Merge pull request #408 from olegabr/alpha-3.0

Issue #365 (Installer needs to be reworked for post-Composer installation
Merge branch 'refs/heads/alpha-3.0' into feature-QWatcher2