Fix some windows-compile issues.

Change-Id: I8aa816680f40c5d301f32b357cedb3d94035f22b
Reviewed-on: http://gerrit.dmdirc.com/1228
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>
Reviewed-by: Gregory Holmes <greg@dmdirc.com>

nbproject/project.properties

@@ -6,7 +6,7 @@ project.license=dmdirc
 application.title=DMDirc
 application.vendor=chris
 build.generated.sources.dir=${build.dir}/generated-sources
-
+source.encoding=UTF-8
 doccheck.path=doccheck.jar
 doccheck.dir=reports/doccheck/