Fix SystemEvent log data type
fix
Revert "fix"

This reverts commit b1ade03903184c61987ff80c0a7fb29742c2bb96.
Revert "Fix SystemEvent log data type"

This reverts commit 497c1c4f50231b5c3c25fb07e2e82e0e88d5269c.
Revert "Revert "Fix SystemEvent log data type""

This reverts commit a76177f48288cf53b7bf398364256a0dde2cd18c.
Revert f4d8fdf..e2f107c

This rolls back to commit f4d8fdf019878d0b07676046c506c93ed7131920.
Merge branch 'master' of github.com:gregurco/yii2-starter-kit