Settings: fixes for Transifex

Replace HTML codes with Unicode variants
Update copyright notices

Change-Id: I27aa820e908eab45bfba720765fa0f38546efb3f
Settings: one more Transifex fix

Change-Id: I1bbcd7d481307302b35fd8a15817ddf25b291e24
Settings: Fix for Transifex

Change-Id: Iac28c7fb7427b24659542c06fb2881ebc4d3c7a5
Signed-off-by: scott <scott@ubuntu.com>

Conflicts:
	res/values/cm_strings.xml