Merge pull request #4 from posmagroup/sin_poligono

Uĺtimos cambios de Antonio.
Fixed to comply with pep8.
updated requirements file
Added lookup method to 'YearOfInspection' filter.
Added filters to admin listing.
Merge branch 'filters'

Conflicts:
	webapp/apps/inspeccion/admin.py
Fixed filters.
Merge pull request #32 from jackboot7/master

Master