libqqwing: add getters for puzzle and solution

For GNOME Sudoku, we want to be able to access these integers without
printing them to stdout. First I thought it'd be best to change the
print functions to be more flexible, but I think this is a much better
and simpler approach.
Add a man page
Use better libtool versioning comment

Looking at gnome-online-accounts, I found much better instructions than
those I had selected before. libtool versioning is confusing enough
already.
Unit tests
Fix read from stdin method
White space
Add tests
Print info about each test run
Test solving
Pass tests for --help
Passing test for version
Working test for --about
Merge pull request #5 from Catanzaro/man

Add a man page
Merge pull request #6 from Catanzaro/export

Allow accessing puzzle and solution as array of integers
Merge branch 'master' of https://github.com/stephenostermiller/qqwing

Conflicts:
	cpp/qqwing.cpp
	cpp/qqwing.hpp
Merge branch 'master' into tests
Fix typo
Use generic expected and actual variable names
Test for generate
New test cases