add git ignore file
- finish sqlite database connection
- table attributes, students, groups, timeslots, and presentations creation
- add bootstrap 3
- update bootstrap version downloaded from bootstrap website
- add setup page

todo:
- actions after submit
- parse CSV file of student, group, and time slot
- modify tag from label to legend for title
- add encrytion for data of setup page
- add action page after submit
- add a submit label to prevent intentional/unintentional visition the process page
- add processing page after received data of setup
- insert some basic info into database now

todo:
- parsing uploaded file of student, group, and time slot
Merge branch 'master' of https://github.com/KuoE0/PresentReg