Fixed build.
Merge pull request #1 from ksiazkowicz/master

Notification code update
Initial gcc2 support, patch from Haikuports, with a little modification by myself. Set the deskbar replicant show as default, and removed the gcc4 notice from preferences.
Initial rework of the build system to support the latest Haiku changes. Patch from Adrien Destgues included, Thanks!
Updated contributors.

	modificato:   Contributors
Merge pull request #1 from Barrett17/master

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