modify GUI
change some note
Revert "change some note"

This reverts commit 45c69948fb4207c09724d2562ed8e3656f49fbc2.
Save before merge
Try to solve conflicts
delete pictures which are never used
Add sequence validation check function into searchCenter
Merge pull request #200 from igemsoftware/Branch-chyb

Add sequence validation check function into searchCenter
Merge pull request #201 from igemsoftware/master

Victor