Midsummer Edition

- added data for the ma-N1400 negative i-line and e-beam resist from
  Micro Resist Technology, GmbH
- new VASE measurement for AZ BARLi II BARC in collection 'litho'
- new VASE measurements for bleached and unexposed Dow/Shipley S1800 photoresist
  in collection 'litho'.
- add new measured refractive index file litho/WiDE-C_180.nk
  The index from the data sheet does not seem to be quite correct.
- new data for LOR-A in collection 'litho' with wider wavelength range.

Christmas edition

• corrects data for Ultra-i123 i-line photoresist
• additional data sets for lithography materials

More data for lithography

• added more materials to the litho collection