CONFIG: Add .sass-cache to gitignore
CONFIG: Add .sass-cache to gitignore

final-year-project/doubtfire-web,doubtfire-lms/doubtfire-web,alexcu/doubtfire-web,alexcu/doubtfire-web,doubtfire-lms/doubtfire-web,final-year-project/doubtfire-web,doubtfire-lms/doubtfire-web,doubtfire-lms/doubtfire-web