Fixed several issues on PE/ELF/MACH0

- relocs, entry0 vaddr and baddr
- fix tiny.elf crash (null deref on *bin ptr)
Colorize S? and shrink sz/vsz from %08 to %04
Ignore sections at vaddr=0 (fixes some crappy elfs)
Add radare2 spec file
Fix udis86 regression

$ rasm2 -o 0x100005f8f -a x86 -b32 -d e800000000
call 0x5f94

$ rasm2 -o 0x100005f8f -a x86.cs -b32 -d e800000000
call 0x100005f94
Fix r_reg_next_diff (thanks defragger!)
Handle mips assembler from the capstone plugin
Update radare2.spec (still not working)
Refactor (once again) rsa-find.
even moar colorz in help
Fix a stupid mustake in bed307e
Added more mips assembler instructions
Dont think theres an a7 register in mips
Fixed R opcodes
Fix mips-asm for 'R' types and remove '$' from mips.cs regs
Fix #997 - Can't assemble xor eax,eax on 64bit
Update capstone-next to get some x86 disasm fixes