Adding a few more problematic C++ .h files to samples.
Merge pull request #849 from github/even_moar_cpp

Adding a few more problematic C++ .h files to samples.
Include .scpt as a valid Applescript extension
Merge pull request #851 from github/append--applescript-extension

Include .scpt as a valid Applescript extension
Remove .pas sample
Narrow test and set ACTIVE flag for heuristics
Update samples, version bump to 2.10.7
Merge branch 'master' into cpp_heuristic

Conflicts:
	lib/linguist/samples.json
Regenerating samples.json and bringing C++ heuristic test up to date