The correct folder is now shown on 'Folder Explorer'
Changed the way the project's color is chosen. Now only one input field
is used and all it takes is clicking on it to popup the selection form.
It makes no sense expecting the user to enter hex color codes...
Small fix to make sure the 'project_percent_complete' field is not NULL on
project creation/editing.
Cosmetic fixes on the filtering fields, for consistency.
Fix to make sure a valid color is set on project creation.
Cosmetic fixes to make the forms look better.