Merge pull request #64 from nemomobile/vdv-devel

[nemo-qml-plugin-email] Extract quotedBody from html part when plain text is not available.
Merge pull request #65 from nemomobile/vdv-devel

Fix typo in last commit
[nemo-qml-plugin-email] Improve standard folder handling for trash folder.

Change default account sync to -1 since QMF can return 0 for invalid accounts.
Merge pull request #66 from nemomobile/local-folders

[nemo-qml-plugin-email] Improve standard folder handling for trash folder
[nemo-qml-plugin-email] Improve folders model to handle local folders properly.
Merge pull request #67 from nemomobile/standard-count

[nemo-qml-plugin-email] Improve folders model to handle local folders properly.
[nemo-qml-plugin] Send messages in outbox when syncying the account.

Introduce sendMessages invokable.