If we wait until after adjusting the paths relative to the new
target, we may fail to import them because the path they'll be
relative to may not yet exist.
If we do it after moving path
Whenever an empty tag was found, everything before it risked
being eaten because I wasn't strict enough about the characters
allowed. Crossing `{` can not be allowed.
Fixes#67
Previous one didn't sufficiently remove double semicolons.
This one should be too eager, but then restore them if they
were valid in a for loop.
Fixes#70
Looks like webkit (especially Safari) doesn't properly handle
0% being 0.
Also had to rewrite some regexes because they should now assume
there may still be a unit.
Fixes issue #60
return is not guaranteed to be followed by a return value.
It could just be "return", followed by nothing (void return),
not even a semicolon, just line feed (ASI)
Whatever is next could, for example, be another operator.
We may just need ASI to kick in there, so keep the line feed
after return.
Fixes issue #54
"return" looks like it could be a variable of which ['x']
is a key. I've improved the code to also check for keywords.
If whatever preceeds it is one of the keywords, don't convert.
Fixes issue #44
I had to split the action of minification into a separate
method because recursively importing files requires them
to also be minified, and I don't want that one to write
to a file.
* Let everything go through move(), even if the file is not being
written elsewhere (it also does some cleanup)
* Reorder minify statements: string/comment parsing should come first
* Update test with url() that makes no sense
* Update same test to escape as intended (double-escape would’ve been needed)
