* Initial support for the z80 CPU
- assembler, disassembler and basic code analysis
- code analysis is very primitive atm

** Apply patch from Simon Ruderich (thanks!)
* Remove some unused variables.
* libr/core/disasm.c: Fix minor memory leak.
* libr/util/str.c: Cleanup r_str_home() and fix potential crash.
* libr/line/dietline.c: Cleanup r_line_hist_load, fix memory leak.
* libr/core/cmd.c: Fix read from uninitialized memory.
* libr/util/str.c: Add comment why r_str_cpy() was added.
* libr/io/p/io_malloc.c: Prevent read from invalid memory.
* Split -n into -n (no user settings) and -N (no analysis).

* Remove tests/ and use r2-regressions from vext01 github

* Fix -n help message as reported by rudi_s
* Oops fix build again

* Fix build + initial work on z80 asm/dis

* Build the ewf plugin if requested
* Fix valgrind warning thanks to Simon Ruderich
* Add mach0 ARM subtypes and fix parsing

* Added m68 disassembler and code analysis
- m68k assembler pending to fix some license issues with author
* Added z80 assembler and disassembler
- still not integrated with the plugin
* Software licenses sucks

* Fix output of search command (fix regression test)

* Fix nullpointer checks in p/bin p9, pe and pe64 when
using virtual files like malloc:// (thanks?@vext01 for reporting)
* Add search.in=block
* Fix search ranges in search.in=file (fixes r2-regressions test)

* Fix opening files with spaces in name from r2 prompt
* Sort TODO