Merge pull request #1 from InvictusInnovations/master

test pull request
Merge pull request #2 from InvictusInnovations/master

Test pull request, sync test
[BW]: [NIP] Preliminary implementation of support for Outbox/Sent folders
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee

Conflicts:
	KeyhoteeMainWindow.cpp
[BW]: [NIP] Further prerequisites for mail outbox/sent items folders.
[BW]: [NIP] Prerequisites for replied message formatting.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee
Merge pull request #3 from InvictusInnovations/master

sync codes
[BW]: [NIP] Replied/Forwarded mail reformatting implemented.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee

Conflicts:
	KeyhoteeMainWindow.cpp
finish the rest word translations draft
Made changes to comply with modified message_db api. Attempted quick fix of using parent pointer to fix crash in ATopLevelWindow as suggested in the issue, but it didn't work (maybe it needs to be cast to KeyhoteeMainWindow instead of just QWidget?), so instead I just commented out the crashing code in ATopLevelWindow as a workaround. Left some comments about suggested changes to mail handling, needs discussion with vogel (assuming he disagrees with me :-).
load translations from qt resources
[GS] Fixed bug: Application crashes when mail is opened in standalone window
[BW]: [Ign] Enabled back CMakefile translation changes.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee
[BW]: [NIP] Mailbox view specific to Draft folder shows Date Saved instead of Date Sent column.
[BW]: [Ign] Removed superfluous separator from mail editor windows toolbar.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee

Conflicts:
	CMakeLists.txt
	Mail/Mailbox.cpp
	Mail/maileditorwindow.cpp
	Mail/maileditorwindow.hpp
[BW]: [Fix] Bad mailbox page has been displayed when 'Outbox' item has been selected in navigation tree.
Merge branch 'master' of https://github.com/InvictusInnovations/keyhotee
improve saving attachment
Disable "Menu->Mail->Save attachment" option when mail with attachment is not selected