New `wcwidth()` implementation that uses a plain lookup table based on the unifont.hex file. Closes #591.
This allows use of all characters in the default unifont provided. I doubt there are any custom ones already anyway, but if there are, there is a small chance this will break some chars in those.
This also means that some characters that don't have an associated glyph now render (like 0x23FB), since unifont sneakily provides a small 'image' of the hexadecimal representation of those characters. Custom fonts will therefore also have to provide those as wide chars, but they don't have a reason to replace those anyway, because they're not defined, after all.
Added setting to allow disablng debug card functionality.
Added world getter to player values of debug card.
Fixed side check in tile entities failing in rare cases. Closes #590.
Update fr_FR.lang
Merge pull request #593 from Mazdallier/patch-1

Update fr_FR.lang
Update zh_TW.lang
Merge pull request #594 from mymagadsl/patch-4

Update zh_TW.lang
Version bump.
Merge branch 'master' of github.com:MightyPirates/OpenComputers
Merge branch 'master-MC1.6.4' of github.com:MightyPirates/OpenComputers into OC1.3-MC1.6.4

Conflicts:
	build.properties