Time for the weekly Iceberg update.
Thanks to all brave users, issue reporters and contributors :).

Key changes: we have introduced some tag support, a new credential manager to manage keys and passwords per host or repository, a new version of tonel, and made a first step towards a simplified contribution to Iceberg by listing it as Pharo's repository.

Enjoy,
Guille in behalf of all Iceberg contributors

Following, the detailed changes log.

New Features
#842��Adding Credentials Store
#843��Update Tonel to 1.0.7
#823��Iceberg repository should be listed as Pharo's one
#841��Basic tag support (#372)

Infrastructure
#787��Add Windows ci with Appveyor (not yet green!)

Enhancements
#827��Add package dialog has some glitches
#833��replace #asIcon with #iconNamed:
#832��Move Iceberg from MostUsedTools to Tools
#830��Better handling of not github remote urls
#825��Enhance Migrate to tonel commit message
#637��Show tag version instead of "Detached HEAD"
#829��migrate-versions-browser

Bug Fixes
#835��Compare file definitions by their binary uninterpreted content
#838��Clone from incorrect github repository fails with DNU
#826��Pushing to virgin repository raises a DNU