updated README.md
Closes #32
Script for combined tests
Renamed old script to test_single and implemented common error report
fixed print-ast errors

closes #51
Merge branch 'dev' of github.com:djrieger/mjplusplus into dev

Conflicts:
	tests/test.sh
Renamed test_single.sh to single_test.sh
reject too large integer literals, closes #52
Test cases for issue #52
fixed testscript and a testcase
new integer testcases are now handled correctly
Improved test script
Started implementing #25
run all tests in ast_printer; have all testcases end in .mj
made test script complain about missing executable
Fixed "make" target in Sublime project file
improved Lexer errors

closes #38
merged dev
generated documentation