- patch using FilteredCheckboxTree (suggested in bugzilla coment #5)
- contains new CheckboxTreePart as tree variant of existing
CheckboxTablePart, this tree part uses internally FilteredCheckboxTree
and PluginListPage of feature project wizard uses it
- small page corrections of grid layout data and indents needed to fit
together Wizard Page with FilteredCheckboxTree for correct alyout
- counter label is always delegating to checked leaf items in
FilteredCheckboxTree (removed separate counter int in the part)
- filtered checkbox tree by default use wildcard at the beginning of
filter string (if user do not insert himself)
- copyrights should be updated

Change-Id: Id18a0c414dfcbb639dc6aceb4184f8bad188764c
Signed-off-by: Martin Karpisek <martin.karpisek@gmail.com>