Pwntools-elf-only

- [979][979]+[1a4a1e1][1a4a1e1] Fixed [974][974], a bug related to the terminal handling and numlock.
- [980][980] Fixed the `pwn template` command.

[974]: https://github.com/Gallopsled/pwntools/issues/974
[979]: https://github.com/Gallopsled/pwntools/pull/979
[980]: https://github.com/Gallopsled/pwntools/pull/980
[1a4a1e1]: https://github.com/Gallopsled/pwntools/commit/1a4a1e1

- [895][895] Added a Dockerfile to simplify testing setup and allow testing on OSX
- [897][897] Fixed some incorrect AArch64 syscals
- [893][893] Added the `pwnlib.config` module
+ Configuration options can now be set in `~/.pwn.conf`
+ This replaces the old, **undocumented** mechanism for changing logging colors. Only br0ns and ebeip90 were likely using this.
+ More information is available in the documentation [here](http://docs.pwntools.com/en/dev/config.html).
- [899][899] Pwntools now uses Unicorn Engine to emulate PLT instructions to ensure correct mapping of PIE / RELRO binaries.
- [904][904] Enhancements to the accuracy of the `pwn checksec` command.
- [905][905] Added a `pwn debug` command-line utility which automates the process of `gdb.attach(process(...))` to spawn GDB
+ More information is available in the documentation [here](http://docs.pwntools.com/en/dev/commandline.html#pwn-debug)
- [919][919] Added a `pwn template` command-line utility to simplify the process of bootstrapping a new exploit.
+ More information is available in the documentation [here](http://docs.pwntools.com/en/dev/commandline.html#pwn-template).
- [948][948] Fix unnecessary warning for Core files
- [954][954] Fix list processing in `~/.pwn.conf`
- [967][967] Respect `TERM_PROGRAM` for `run_in_new_terminal`
- [970][970] Fix overly-aggressive corefile caching

[947]: https://github.com/Gallopsled/pwntools/pull/947
[948]: https://github.com/Gallopsled/pwntools/pull/948
[954]: https://github.com/Gallopsled/pwntools/pull/954
[960]: https://github.com/Gallopsled/pwntools/pull/960
[967]: https://github.com/Gallopsled/pwntools/pull/967
[968]: https://github.com/Gallopsled/pwntools/pull/968
[970]: https://github.com/Gallopsled/pwntools/pull/970

[895]: https://github.com/Gallopsled/pwntools/pull/895
[897]: https://github.com/Gallopsled/pwntools/pull/897
[893]: https://github.com/Gallopsled/pwntools/pull/893
[899]: https://github.com/Gallopsled/pwntools/pull/899
[904]: https://github.com/Gallopsled/pwntools/pull/904
[905]: https://github.com/Gallopsled/pwntools/pull/905
[919]: https://github.com/Gallopsled/pwntools/pull/919