ignore build dir
Make sure icon() and iconPixmap() never crash.
Remember the dir when opening/saving attachments.
Document clone() methods.
Add flags to Entry::clone() for customized cloning.
Allow passing entry cloning flags to Group::clone().
Add Group::exportToDb().
Merge branch 'master' of github.com:nohn/keepassx into master

https://github.com/keepassx/keepassx/pull/29
Use QString::toLatin1() rather than ::toAscii()

The toAscii (and fromAscii) are removed from Qt5 in favor of Latin1.
Enable the foritfy source build flag only for optimized builds.

https://github.com/keepassx/keepassx/pull/27
Set default build type to RelWithDebInfo.
Merge branch 'staging'