changes in multiple parts of the project to achive the following
1- split Quicksort rst module into two separate componente to be imported into edx unit
2- prepare Quicksort AV to be imported into edx as non-graded problem
3- prepare QuicksortPRO exercise to be imported into edx as graded problem
4- prepare a samplePRO excersice that has getGrade, getState and setState functions
5- modify sphinx haiku theme to fit into edx lms/studio interface.
6- prepare for heroku deployment