add 'GET /courseCommits/current' server endpoint
add 'GET /courseCommits/current' server endpoint

PrairieLearn/PrairieLearnHack,parasgithub/PrairieLearn,parasgithub/PrairieLearn,parasgithub/PrairieLearn,mwest1066/PrairieLearn,tbretl/PrairieLearn,PrairieLearn/PrairieLearnHack,PrairieLearn/PrairieLearnHack,mwest1066/PrairieLearn,PrairieLearn/PrairieLearnHack,tbretl/PrairieLearn,rbessick5/PrairieLearn,lotrfan/PrairieLearn,parasgithub/PrairieLearn,mwest1066/PrairieLearn,lotrfan/PrairieLearn,lotrfan/PrairieLearn,tbretl/PrairieLearn,kevinwang/PrairieLearn,jakebailey/PrairieLearn,jakebailey/PrairieLearn,lotrfan/PrairieLearn,lotrfan/PrairieLearn,mwest1066/PrairieLearn,PrairieLearn/PrairieLearnHack,rbessick5/PrairieLearn,PrairieLearn/PrairieLearnHack,PrairieLearn/PrairieLearnHack,lotrfan/PrairieLearn,rbessick5/PrairieLearn,jakebailey/PrairieLearn,mwest1066/PrairieLearn,rbessick5/PrairieLearn,kevinwang/PrairieLearn,kevinwang/PrairieLearn,kevinwang/PrairieLearn,lotrfan/PrairieLearn,tbretl/PrairieLearn,kevinwang/PrairieLearn,parasgithub/PrairieLearn,kevinwang/PrairieLearn,jakebailey/PrairieLearn,tbretl/PrairieLearn,PrairieLearn/PrairieLearnHack,kevinwang/PrairieLearn,rbessick5/PrairieLearn