Noise doesn't accept "<" as an valid character

[FlipEndo]

So, Fall Out Boy has a song called "Fame < Infamy", but Noise doesn't recognize it as valid and instead changes the displayed title to that of the last hovered song. I've thought the problem was with the "<" character, so I've tried to change another song's name and include this specific character on it, and it had the same effect. The same thing happens when I change an artist or album name, for example. To reproduce it:

- Open Noise and change any song's title including a "<" on it
- Now hover the cursor over any different song title.
- After that, hover the song title that you've just changed. Ta-da! It disguises, just like magic.

When I open Noise via terminal, it also gives me the following output (which was in portuguese, but I translated it):

[WARN 19:31:16.174773] [Gtk] Failed to set text from markup due to error parsing markup: Error on line 1 char 37: ' ' is not a valid character following the character '<'; may not begin an element name

Sorry for the bad english and if I sound confusing.

[Scott Ringwelski (sgringwe)]

Fixed in list, top display, info panel and album grid.