import libs
new servlet
fetch user
fix links to availability
add servlet + view
changed database
Merge branch 'feature/keywordlist' of https://github.com/Tgy31/PIMS into feature/keywordlist
changed for studentDAO, because I delete project_id
Revert "changed for studentDAO, because I delete project_id"

This reverts commit 3add7ef64d034e883586d309dcba35314c01e71d.
add knockout application
add keyword working
add explanation for user
KeywordMapping and Keyword
remove logs + refactor
Merge branch 'feature/keywordlist' of https://github.com/Tgy31/PIMS into feature/keywordlist
add view/JSON switch
add ajax call
add methods: keywordDAO
add studentKeywordDAO
add ajax handler