Restore use of dump() on Windows if debug pref is enabled
Restore use of dump() on Windows if debug pref is enabled

It turns out that the Cygwin console, unlike -console, is actually
usable, so developers on Windows can use that. Since we sometimes need
real-time debug output from end users (who won't have Cygwin installed),
keep logging to the Browser Console if only the -ZoteroDebug flag is
passed.

adunning/zotero,retorquere/zotero,adunning/zotero,hoehnp/zotero,LinuxMercedes/zotero,rmzelle/zotero,rmzelle/zotero,LinuxMercedes/zotero,gracile-fr/zotero,egh/zotero,adunning/zotero,gracile-fr/zotero,sendecomp/zotero,sendecomp/zotero,retorquere/zotero,rmzelle/zotero,robamler/zotero,robamler/zotero,gracile-fr/zotero,sendecomp/zotero,hoehnp/zotero,egh/zotero,LinuxMercedes/zotero,egh/zotero,hoehnp/zotero,retorquere/zotero,robamler/zotero