Results 3 issues of Dmitriy Shilin

Hi, This PR contains some improvements for: - redundant variable declaration during for loop - skip explicit type during array initialization

Hi @gavv! I am looking for a very simple feature. I want to be able to use tagberry on multiple machines by syncing the database files. Currently there is no...

Is it possible to configure colors somehow? For the default KDE theme it is impossible to read the title of the task. ![image](https://user-images.githubusercontent.com/8618625/66901968-75e72d00-f008-11e9-9c07-75b5c6c35b47.png)

enhancement
ui