Remove r2agent and libr2.${EXT_SO} in `make purge`
Fix symbol list on some MACH0 files
Recognize LDR pc and POP pc as RET in arm.cs
Add some more mach0 headers for r2 -nn
Fix #1483 - Add 'libpath' in rarun2 manpage
Add optype for in/out/iretd for x86.udis
Fix mouse selection problems in V:
Fix #1484 - ac not honoring scr.color
Add chunked search `/+` and enhace visual mode `|=`

* | sets cmd.cprompt
* = sets cmd.vprompt
* var names are a bit confusing, we should find better names
* Better highlight
* Fixed column in visual
* scr.colpos has been deprecated, now uses hex.cols
* Initial implementation of a chunked search /+
Better chunked size /+ with incremental subchunking
Remove unused `hightlight` function
add some debug-code for RList, possibly for memleak-hunting