[tests] build test cases with Makefile; install cross compilers depending on Ubuntu version; commented out three broken acceptance tests

[Refactoring] Improves code quality of acceptance tests: use self.assertEqual instead of plain asserts

Initial version of type inference. It is still very rudimentary at the moment since it just tracks pointer but it's a very solid start! 

* Added pre-commit hook for ocp-indent

* Test for one file

* Initial commit of cwe_checker emulation feature using bap primus under the hood.

* Fixed some Core issues with Maps and Hashtbls

* Moved plugins to their own folders as expected by BAP.

* Added .merlin since everybody likes merlin

* Further improvements in the build process

* Commented cwe_checker_emulation plugin

* cwe_checker_emulation detects double frees with the help of Primus.

* Refactoring of cwe_checker_emulation, extracted incident reporting to
module Incident_reporter.

* Added test cases for cwe125, cwe416, and modified cwe415.

* Now reporting use-after-free correctly

* Adjusted README

* Adjusted CHANGES.md.

* Added spaces to content codacy.

* Adjusted build process for emulation plugin

* fixed emulation recipe

* Reports out-out-bounds read/writes, events are not reported multiple times now.

* Adds tests for cwe-415 and cwe-416. Arritifical examples for cwe-125 and cwe-787

* Travis aware emulation tests.

* Fixed acceptance tests.

* Initial version of Type inference

* Building artificial samples with scons-2, removed makefile

* improved CWE476-check with dataflow analysis

Pre commit 

This builds cwe_checker and runs the test suite on Travis CI.

* Simple recipe for standard run

* Add dockcross for C++ x86 cross compilation.

* Add dockcross containers for all cross compilation targets

* reduced container size

* removed caching in install script

* size optimizations

Acceptance tests

This adds a check for CWE248: Uncaught Exception

--cwe-checker-partial=CWE476,CWE782 to just run the analysis for
CWE476 and CWE782.

checks. Ready to implement partial analyses.

docker optimized and markdown issues fixed