Log Message:
Update devel/capstone to version 3.0.5-rc2

This provides important fixes in the core & several bindings:

Library

    Fix build for Visual Studio 2012
    Fix X86_REL_ADDR macro
    Add CS_VERSION_MAJOR, CS_VERSION_MINOR, CS_VERSION_EXTRA
    Better support for embedding Capstone into Windows kernel drivers
    Support to embedded Capstone into MacOS kernel
    Support MacOS 10.11 and up
    Better support for Cygwin
    Support build packages for FreeBSD & DragonflyBSD
    Add a command-line tool "cstool"
    Properly handle switching to Endian mode at run-time for Arm, Arm64, Mips \ 
& Sparc

X86

    Some random 16-bit code can be handled wrongly.
    Remove abundant operand type X86_OP_FP
    Fix instructions MOVQ, LOOP, LOOPE, LOOPNE, CALL/JMP rel16, REPNE LODSD, MOV \ 
*AX, MOFFS, FAR JMP/CALL
    Add X86_REG_EFLAGS for STC and STD
    Fix instruction attributes for SYSEXIT, MOVW, ROL, LGS, SLDT
    Rename registers ST0-ST7 to be consistent with asm output

Arm

    Properly handle IT instruction
    Fix LDRSB
    Fix writeback for LDR
    Fix Thumb BigEndian setup

Arm

    Fix arith extender
    Fix writeback for LDR
    Rename enum arm64_mrs_reg to arm64_sysreg

PowerPC

    Print 0 offset for memory operand

Sparc

    Fix POPC instruction

Python binding

    Better PyPy support
    Add __version__
    Better support for Python 3
    Fix CS_SKIPDATA_CALLBACK prototype
    Cast skipdata function inside binding to simplify the API

Java binding

    Better handle input with invalid code

PowerShell binding

    New binding

Build-tested with devel/ropper and devel/{py-,}radare2 on NetBSD/amd64.