Fix nginx configurations:

- Add a note about https:// for Chwala
- Remove escaped $ that cause non-working configurations
Merge pull request #6 from lbeltrame/fix-nginx-config

Fix nginx configuration in documentation
Update package version matrices
Add osc-cache/ to .gitignore
Add an overview picture of components that interact
Start adding some notes about packages as they deserve special (packaging) consideration
Add some verbiage on setting ACLs, and some other cleanups and additions
Updated repo Location
Merge pull request #8 from ajaissle/patch-1

Updated repo Location
iRony (nginx): Add rewrite directives to make Apple {Calendar,Contacts}.app happy; add DAV methods
Add documentation to Hide Global Address Book
Add some instructions on making a Kolab Groupware deployment a fully functional multi-domain deployment
Refresh package version matrices
Update the deployment guide's index and Cyrus IMAP murder topologies section
Standardize the Kolab command-line documentation (synopsis, examples, seealso)
Add the FAQ
Add some verbiage and background for some of the items we mention
Add glossary item for EPEL
Adjust CentOS and RHEL installation guide
Info about conversion to skiplist format for annotations.db and mailboxes.db

When upgrading from Kolab 2.3 the files annotations.db and mailboxes.db might be in Berkeley DB format.  Kolab 3 uses
skiplist, so we need to convert the files. Do that on the source
system, where we can work with both formats.