Add DuckDuckGo search engine for en-gb locale (both regional and region agnostic version)

Change-Id: Ia837b2085e3fc16b608ee68f558460443a065384
Browser: zh-rTW translations

Change-Id: I49df92bef3de057f6cd1956449463dc8fe72aa56
browser: Privacy Guard support

 * Return empty lists for query of bookmarks and history when privacy
   guard is active for the calling process.

Change-Id: I6a20ad481ae60d1e062833db43d1c2fdfe43c687
Browser: Update Polish language

Change-Id: I478d8381fd8acd0f1ba3ce3c55987bc2bb6e285a
Merge "Add DuckDuckGo search engine for en-gb locale (both regional and region agnostic version)" into cm-10.1
Browser: FI translations

Change-Id: I5c4c1d90c1287901efa2c0bd25e23ecf96a1801d
Browser: CA translations

Change-Id: Ic66e9d37162925826918a235de773823f22fce9b