FX -> OK CR0 tests

FX -> OK CR0 tests
MIPSEL jumps analysis (refs) tests
Added test case for MIPSEL branch back-ref
Added regression test for MIPSEL jump xrefs
add r test #944
Add rabin2 PE relocs tests
Add PREPEND variable to tests.sh, add reset

- now test can run with strace r2 or zzuf r2
Mark fixed PE tests
fix test warning on imp
Handle REVERSERC variable to reverse exit value
add a yara scan test
Fix resize test, add write test
Fixed an incorrect addr in 96emptysections
Fixed an incorrect addr in 96workingsections
add -k tests
Merge branch 'master' of https://github.com/radare/radare2-regressions
fix -k test
Fixing address output in pe32
Fix meta/metadata
Fix tests.sh FAIL output and search/va+anal/fcn_name
reverted text
fixing the virtual address in fatmach0