Log Message:
py-pyelftools: updated to 0.27

Version 0.27
- Print addend wfor RELA relocations without symbol
- Implement symbol lookup for {GNU,}HashSection
- Major rewrite of expression parsing
- Cashed random access to CUs and DIEs
- GNU expressions
- Support parsing LSDA pointers from FDEs
- Add support for DWA_OP_GNU_push_tls_address in expressions
- Some initial support for AArch64 little-endian
- Support for ELF files with a large number of sections
- Some minimal support for DWARFv1
- Many small bug fixes; see git log.