Partial refactoring of the whole explorer area.
Merge pull request #1433 from diegosarmentero/master

Partial refactoring of the whole explorer area.
simplified processing improved
Merge pull request #1434 from diegosarmentero/master

simplified processing improved
add to project, and project properties complete
Merge pull request #1438 from diegosarmentero/master

add to project, and project properties complete
misc_container renamed to tools_dock, close project support
Merge pull request #1439 from diegosarmentero/master

misc_container renamed to tools_dock, close project support