Update NetIRC.dll

Closes #42.
Update project file [ci skip]
Scroll to end of tab on tab switch

Closes #29.
Only focus on the input box if no text is selected

Closes #38.
Enable spell check
Merge pull request #47 from Decagon/master

Enable spell check
Display numeric 404 ERR_CANNOTSENDTOCHAN in the corresponding tab

Closes #46.
Update project file [ci skip]
Flash window based on WindowState

Closes #23.
Let Process.Start open the URL and handle Win32Exception

Closes #50.
Add notifications for private messages

Closes #52.
Update project file [ci skip]
Merge remote-tracking branch 'upstream/master'