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
Merge pull request #1622 from haukepetersen/fix_pca_sripts

board/pca1000x: added/fixed dist scripts