Fix mips_cs esil. Fix esil bigendian memread.
New commands 'afm' and 'Vdj' (to merge two functions) WIP

* Update SDB from Git
Fix some cppcheck warnings
Fix #1682 - Fix ELF null deref regression with rabin2 -c
cppcheck: fix 1 'else if' cond matches previous cond + test indice before using it
Prevent Infinite Loop

max_size may be unnecessary as a loop sentinel.
Remove all max_size vars
Merge branch 'master' of https://github.com/radare/radare2
change from r_search to r_regex for ropsearch