splash: added a percentage above the progress bar and made sure that builds without the debugger won't display the kernel log during boot
splash: added a percentage above the progress bar and made sure that builds without the debugger won't display the kernel log during boot

Also added some extra text to debug builds to explain the ESCAPE key and
the existence of the kernel log.

jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree,jmolloy/pedigree