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Update MAKEFILE.NG with changes from upstream/0.63.
Merge branch 'upstream/0.63'
Original PuTTY beta 0.63 from Simon Tatham.
Add certificate signing to MAKEFILE.NG.
Add support for full four part version numbers.
Change name in UI to PuTTYNG.
Change to not remove window title and border when integrated.
Add missing comment.
Fix crash on startup.
Add *.ipch to .gitignore.
Fix separation of PuTTYNG modifications.
Changed the InternalName in the VERSIONINFO resource to "PuTTYNG".
Merge branch 'upstream/0.62'
Original PuTTY beta 0.62 from Simon Tatham.
Fix main window of parent not moving to top when the user clicks with…
…in the PuTTYNG window. Add #ifdef PUTTYNG around all PuTTYNG additions.
Make PuTTY think it's always maximized so that the window size does n…
…ot have to be a multiple of the character size.
Start modifications for better integration into mRemoteNG.
Original PuTTY beta 0.61 from Simon Tatham.