adding stopwords for contributors
add test for stopwords from contributors
fix x_contributors dereferencing error
Merge remote-tracking branch 'dagolden/topic/stopwords-contributors'
do not require another dzil plugin for testing

Signed-off-by: Caleb Cushing <xenoterracide@gmail.com>
correct spelling

Signed-off-by: Caleb Cushing <xenoterracide@gmail.com>
2.006000

	- add contributers to the stopwords list