fix(gen): fix build when not selecting socket.io

Changes:
- remove `filters.socketio` conditional from vendor search glob
Merge pull request #495 from kingcody/fix/build-without-socketio

fix(gen): fix build when not selecting socket.io
fix(gen): use bool for bootstrap filters

Changes:
- `filters.bootstrap` and `filters.uibootstrap` will be true or false only

Closes #496
Merge pull request #497 from kingcody/fix/bootstrap-prompts

fix(gen): use bool for bootstrap filters
update changelog
2.0.13
fix(demo): include bootstrap in demo
refactor(app:templates:server): deprecate res.sendfile -- use res.sendFile instead
Merge pull request #539 from cesarvargas00/master

refactor(app:templates:server): deprecate sendfile -- use sendFile instead