Remove unused imports
Fix broken doc links

I renamed some options in e32c2b2 and forgot to update the
FormattingWriter documentation
Improve and rearrange command line file parsing

The way in which files are translated is now more flexible for the user
and also allows absolute files (fixes #48). For a full description, see
the comments of #50. (Fixes #50 as well.)

Also extracts various parts of the file parsing “assembly line” into
separate top-level functions, which means they can now be tested!
Update for ceylon.language take → takeWhile rename

Following ceylon/ceylon.language@6989bfb.
Change version to 1.1.0-BETA
Add published module
Add SDK modules