refactored API
added listing for existing project
fix(project/create): improves create page js and css code, fixes ui behaviour
fix(project/create): improves create page layout
wip(project/open): shows list of projects at the open page
forgot to add model routes
fix(project/open): wires up project open
Merge pull request #34 from StarterSquad/feature/api-refactoring

refactored API
feat(project/create): allows to choose programs & populations
added new version of example template and undid my changes for loadspreadsheet (not relevant in new template)
improve(optimization/constraints): improves ux of radios list
improve(project/create): disables form native validation
improve(sass): removes ck.css with centeredcontainer, and refactors to actionbar instead
improve(project/create): sends post request with project data instead of get
made backend work with POST request for project/create
removed "category" from post parameters
Merge pull request #35 from StarterSquad/feature/project-create

feat(project/create): allows to choose programs & populations
updated example.xlsx and loadspreadsheet
merged develop