mozc-isearch.el: Renamed definition of advice to run `mozc-mode-end-hook'.
mozc-isearch.el: Improved the workaround for the INHERIT-INPUT-METHOD issue.

- New option: `mozc-isearch-use-workaround'
- Renamed function `mozc-mode-activate' to `mozc-mode-ensure-active'
- Don't call `mozc-mode' if mozc-mode is already active
mozc-isearch.el: Bumped version to 0.3.0.
New file: mozc-mode-line-indicator.el v0.1.0