Merge pull request #1 from hugovk/master

Fixed a typo and made some other strings consistent
Only show conversation after full conversation is loaded
Fix GPS doesn't stop when user leave NearbyTweetsPage
Only show CountBubble when refresh for new tweets in SearchPage
Harmattan: Improve notification

Notification will only created when app is in background. If the app is
in foreground, a info banner is show instead.
Redesign UserPage
Bump version
Update app description
Wrap all user-visible text with tr()/qsTr() for i18n
Add English (default) & Chinese (incomplete) translation
Minor changes in database

* Use db.readTransaction() for read-only transaction
* Use a global db object instead of calling openDatabaseSync() for every
transaction
* Use Qt.formatData/Time() instead of Qt.formatDateTime() in some cases
Improvement in NewTweetPage

* Able to detect url with 'http://' or 'https://' and adjust characters
left count
* Improve support for autocompleter at the middle of the sentense
Remove UIConstant.js & add thumbnailSize to constant
Move twitter.js to Services/Twitter.js
Add license header to all source file
Some cleanup/changes in project file

* Add APP_VERSION preprocessor marco in project file
* Harmattan: Remove 64x64 icon
* Symbian: increase maximum heap size
Fix some bugs with DM

* Database data type for tweetId change from TEXT to INTEGER
* DM arrange using created_at instead of tweetId

Will probably fix some weird bug in DM like:
* showing new DM everytime after startup even though there is no new DM
* DM doesn't sort chronologically (in DM conversation, not DM thread)
Allow to specific app language from command line argument
Minor bug fix & add twitter.yfrog.com image preview
Add option to copy DM