Add only working plugins to Server.DEFAULT_PLUGINS
Add only working plugins to Server.DEFAULT_PLUGINS

Add a try/catch around the require() call to load the bundled plugins
and use plugins only if there was no exception.
This allows us to have optional dependencies in the plugins.

9590/jsDAV,mnutt/jsDAV,WigWagCo/jsDAV,mnutt/jsDAV,9590/jsDAV,clochix/jsDAV,jsilvestre/jsDAV,jsilvestre/jsDAV,arcana261/jsDAV,mikedeboer/jsDAV,WigWagCo/jsDAV,clochix/jsDAV,cozy/jsDAV,cozy/jsDAV,arcana261/jsDAV,mikedeboer/jsDAV