Added printing of comments to *.actual test files

This enables testing of comment-handling code. Updated *.expected test
result files to account for printing of comments.
Removed unneeded newlines from parsed comments

Newlines from comments separated by lines are retained when comments
are appended, so adding a newline between separate comments for a
node is not needed.
Merge pull request #52 from cquammen/master

Removed unneeded newlines from parsed comments
Removed typo in README
Merge pull request #53 from I3ck/master

Removed typo in README
Updated documentation links to point to GitHub
Merge pull request #54 from I3ck/master

Updated documentation links to point to GitHub
use the CXXFLAGS and LINKFLAGS environment variable in scons

this allows homebrew to use its own flags during the build
Merge pull request #55 from glehmann/build-env

use the CXXFLAGS and LINKFLAGS environment variable in scons