Fix issue with SSL under Win32
Merge pull request #1299 from btdigg/master

Fix issue with SSL under Win32 (btdigg python2)
Reposition statistics menu item.
Save statistics every 15min and only if there was new traffic. Fixes #1288 and partially #1272.
Convert more accurately decimal numbers to text.
Fix condition checking in statistics saving.
Improvements on statistics saving.
Improvements on accurateDoubleToString().
Rework fsutils class to only use Qt-style separators

  fsutils methods are guaranteed to accept strings with both native and qt-style separators and return strings with qt-style separators where appropriate
Update Preferences class

  Preferences class setters are guaranteed to accept string with both native and qt-style separators, getters are guaranteed to return string with qt-style separators
Update options UI

  Guaranteed to work with strings with qt-style separators internally, shows string with native separators to the user
Update QTorrentHandle

  Guaranteed to accept strings with both native and qt-style separators; guaranteed to use native separators with libtorrent API
Update QBtSession

  Guaranteed to accept strings with native and qt-style separators; guaranteed to use qt-style separators internally, guaranteed to call libtorrent API with native separators
Update WebUI classes

  Guaranteed to show paths with native separators to user
Update SearchEngine classes

  Guaranteed to work with qt-style separators internally; guaranteed to call native OS environment using native separators
Update misc classes
Update RSS Classes
Update Main UI
Update dialogs
Hack around QDesktopServices::openUrl to support network shares