Update to 0.90

forum post: http://forum.kerbalspaceprogram.com/threads/43839-0-25-KSP-Interstellar-%28Magnetic-Nozzles-ISRU-Revamp%29-Version-0-13?p=1627034&viewfull=1#post1627034

Sorry for huge changed line count! I accidently allowed visual studio to change line endings.

1). Deleted redundant code for tree.cfg copying to save folder.
2). Included my previous fixes for microwave power from https://github.com/FractalUK/KSPInterstellar/pull/72
3). Merged InterstellarToolbar in Interstellar.dll
4). Updated parts .cfg files for editor to choose their category (Engine\fuleTank...) correctly
5). Tested on clean 0.90 game.