The core_init_data only held three items, most of which don't get set
during testing. Removing this struct means several tests no longer need
to define a "dummy" initdata object to pass around during init.
Implements #92: Remove core_init_data
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This is cleaner and easier than calling into the gtk builder directly.
I bumped up the window layer so other gui components can use it.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
The convention is for gtk builder files named with a ".ui" extension.
Let's rename our file to match, and drop the 6 while we're at it.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
Let's save this disk access for when we're idle.
Implements #11: Load initial track through an idle task
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>