board/pca1000x: added/fixed dist scripts

- pca10000: added author to debug.sh
- pca10005: added debug and reset scripts
- pca10005: fixed flash script
- pca10005: adjusted env vars in Makefile.include
tests/periph_spi: fix usage of board specific LED define
Merge pull request #1710 from thomaseichinger/fix_test_spi

tests/periph_spi: fix usage of board specific LED define
cpu/stm32f1: added missing spi function
Merge pull request #1711 from haukepetersen/fix_stm32f1_spi

cpu/stm32f1: added missing spi function
Merge pull request #1622 from haukepetersen/fix_pca_sripts

board/pca1000x: added/fixed dist scripts