Merge branch 'fix-error-bell' into dev
Fix to use history with incremental last-pattern feature

- To work with incsearch#magic option and converter function(future)
Merge branch 'fix-inc-lastpattern' into dev ref: #14
Merge branch 'update-vital' into dev
Update vital-ove: fix version 7.3 support
Merge branch 'update-vital'