fix(ext/sse): improved keepalive (#81)

Feat/cache (#72)

fix(sse): added JsonEvent/TextEvent and updated Join with http.Respon…

…seWriter (#60)

!fix(viewer): pass `*Context` into viewer.Render (#50)

feat(ext): added `ext/csrf` (#46)

fix(context): throws ErrViewNotFound when no view is available (#37)

fix(static): fixed embed fs checking (#34)

fix(context): specified viewer should take precedence over first one (#…

…27)

chore(docs): added TextView section (#24)

feat(autotls): added autotls extension (#17)