Converted part of header comments to english, changed license text

LICENSE

@@ -1,27 +1,10 @@
-The MIT License (MIT)
 
-Contributors:
+Copyright (c) 2010 Michal Tomáš  - part of the example program
+Copyright (c) 2015 Petr Douša    - conversion of CMSIS defintions to assembler
+Copyright (c) 2015 Ondřej Hruška - library cleanup, bit-banding & missing definitions
 
-Copyright (c) 2010 Michal Tomáš  - část vzorového programu
-Copyright (c) 2015 Petr Douša    - základ knihovny dle CMSIS
-Copyright (c) 2015 Ondřej Hruška - doplnění knihovny, Makefile
-
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+The library can be freely used for educational and non-commercial purposes,
+provided the copyright notices and header comments are retained.
 
+Since a substantial portion of the library is derived from STM32 CMSIS, the original 
+license conditions should be respected.