Variable number of columns

[digitalbase]

First of all thanks for your great project. Looking good !

In our (scrum) development proces we are using more then 3 stages for issues. We use :

• unassigned / new
• assigned
• completed
• tested
• accepted

The current version of the plugin contains 3 fixed columns. I would suggest making the number of columns variable, to be defined in the project settings screen.

After that one should have the ability to set the status per column.

[markablov]

Done. 5e201db
Columns are too wide to place it 4-5 in one row, that's why there is second row.

[lfagundes]

This commit made my tasks screen blank, it's worth noticing that the configuration is general and not per-project.

The behavior is weird, because the 2 columns that were configured didn't appear until I changed the configuration to 3 columns, than everything worked fine.

[digitalbase]

Thanks for that ! You are fast ! Makes the whole plugin a lot more flexible.