Remove queue-m.

It conflicts queue-0.1.1.
Remove file skk.pdf
Remove queue-m from SKK_MODULES.
Fix doc.
modify message
Merge branch 'remove-queue-m' of https://github.com/Yasushi/ddskk into Yasushi-remove-queue-m
Merge branch 'Yasushi-remove-queue-m'
correct email address
Enable travis-ci.
Add travis-ci matrix.
Add ChangeLog.