Optimized rules
Merge remote-tracking branch 'origin/master'
[jp] Add more Japanese rules

These are derived from the "問題な日本語、続弾" book.
Merge pull request #117 from Shugyousha/newjarules

[ja] Add more Japanese rules
mention update for Japanese
whitespace cleanup only
[GUI] Allow user to change the Look & Feel
[el] new rule
tiny formatting cleanup
[fr] fixed false positive in "parlent aux Français".
[pl] new rule and a generalisation
[en] fix which/that rule as pointed out by Kumara Bhikkhu
[de] fix some false alarms
[fr] fixed false positive with "malgré tout".
add missing javadocs
[ca] Improved suggestions in PORTA_UNA_HORA
[ca] disambiguation: la Volta
[fr] fixed false positive in "ils ont affaire".
[ca] new rule REAL_REIAL, improved rules
[ca] rule BASSADA