Notepad++ v7.4.2 bug-fixes:
1.Add SWIFT language support
2.Fix replace in files regression.
3.Enhance Find Replace dialog (resiable & remove search direction radio button).
4.Fix a crash issue while doing a column insertion on a CJK unicode document.
5.Fix repeated notification dialog for modification from outside of Notepad++.
6.Fix a visual glitchy during tab drag and drop.