FIX: Issue #10 (models rotation)

Fix for issue #10 "After welding models may have incorrect rotation if
before welding root part has non-default rotation".
Studies have shown that it is best to have all items had a vertical
orientation. There is very simple solution - rotate root part before
welding.
FIX: conditions for ClearEditor

This fixes selection of conditions for cleaning
NB: if there is selected part only its branch will be deleted, otherwise
all parts
GUI: Editor remains locked while reloading Database

If auto-reloading of the database is enabled, the editor remains locked
until it ends, and the screen displays the appropriate message
(at the moment it supports only not-ModuleManager way of reloading)
changelog update
version attributes update
ModuleManager - any version support

- now it support any version of ModuleManager greater than 2.3.1 for
Database reloading
- to activate MM support change reloadDbUsingMM value to "true" in
config file manually!
improvement of database reloading

- now it always trying to use MM (if presents)
- were added missing lines to DatabaseReloadWithMM:
GameDatabase.Instance.Recompile = true;
GameDatabase.Instance.StartLoad();
- was added mention of borrowing code from Sarbian's ModuleManager
- small code improvement
FIX: Rescaling of models in 0.25

was fixed (probably) rescaling of part models in 0.25
(issue https://github.com/girka2k/unofficailUbioWeld/issues/42)
minor code improvements

- improved locking behavior
- added some spam to debug log when dealing with configs
Merge pull request #9 from girka2k/dev

regular update