* add V850(E2S) architecture
  * add SH2-A architecture
  * add support for analysing i.MX6 HAB structures
  * merge AVR architecture
  * add system/structs classes
  * export 'crawl' out of amoco tree (libclang C-to-structs)
  * add eBPF instructions semantics
  * add support for (old)BPF instructions specs
  * add support for HEX/SREC binary format
  * add MemoryMap 'merge' method
  * add 'step_instruction' method in CoreExec (emulator)
  * add support for UFS structures
  * merge signals dispatcher for ui
  * improve setuptools support
  * remove tox and rely on travis only
  * improve armv7 instructions semantics and code helpers
  * improve armv7 instructions specs and formats
  * add spec tree debug level logging
  * fix decoder for archs with bigendian variable length instruction
  * improve decoder efficency with indicator of extended fetcher
  * add pygments support for sparc, msp430 instruction formatter
  * improve expressions widening
  * improve config module