Update link to docs in the README
Merge pull request #127 from TomK32/patch-1

Update link to docs in the README
Misspelling of CC_BUILD_ARTIFACTS in manual
Missing a .html_safe for format_build_log
Merge pull request #128 from rubyruy/master

Misspelling of CC_BUILD_ARTIFACTS in manual
Fix test_clean_checkout_should_perform_git_clean not reflecting changes (and added comment to explain why those arguments where chosen)
Update travis to check only 1.8.7 and 1.9.3
Another attempt to workaround 1.9.3-p484 ruby / debugger gem versions issue
Update rake version to try and work around 1.9.3 rake version issue
Merge branch 'fix_git_clean_test' into merryh_master
Merge branch 'upstream' into fix_git_clean_test
Merge branch 'fix_git_clean_test' into merryh_master