rebaseRelativeTo fixes

[seyfert]

Found two issues while trying to use the rebaseRelativeTo option on a CSS file.

1. Even though rebaseRelativeTo was set as an option, it wasn't being used. It was always being overwritten by a path based on the relativeTo option. Changed logic to use options value if it is defined.
2. The regular expression used to find/replace instances of url() with the new url based on the rebaseRelativeTo only allowed one url() per line and the url had to end with a semi-colon. But it is valid for a font-face url() to appear multiple times on the same line and not end with a semi-colon. See this article. In order to make this work I changed the regular expression to ignore the semi-colon, not do a global search, and set each subsequent search to start from the previous index+1.

All tests pass.

[jrit]

Awesome, thank you! Is there any way you can update or add test cases to prevent any future regressions related to your fixes?

[seyfert]

Sure. I'll try to add tests for rebaseRelativeTo in the next few days.

[seyfert]

I found another issue while testing. The util function getInlineFilePath did not support fragment URLs. I fixed that and added two additional tests that cover all the changes.

[jrit]

This looks great, thank you. I'll work on publishing a release today.