Move docs to doc/ directory

git-svn-id: https://svn.code.sf.net/p/squirrelmail/code/trunk/squirrelmail@13455 7612ce4b-ef26-0410-bec9-ea0150e637f0

diff --git a/AUTHORS b/doc/AUTHORS
similarity index 100%
rename from AUTHORS
rename to doc/AUTHORS

diff --git a/COPYING b/doc/COPYING
similarity index 100%
rename from COPYING
rename to doc/COPYING

diff --git a/ChangeLog b/doc/ChangeLog
similarity index 100%
rename from ChangeLog
rename to doc/ChangeLog

diff --git a/INSTALL b/doc/INSTALL
similarity index 100%
rename from INSTALL
rename to doc/INSTALL

diff --git a/README b/doc/README
similarity index 100%
rename from README
rename to doc/README

diff --git a/ReleaseNotes b/doc/ReleaseNotes/ReleaseNotes
similarity index 100%
rename from ReleaseNotes
rename to doc/ReleaseNotes/ReleaseNotes

diff --git a/UPGRADE b/doc/UPGRADE
similarity index 100%
rename from UPGRADE
rename to doc/UPGRADE