commit 71c3bfe56b584e1be367c1f5cca0e68d98b77371
Author: Florent Chuffart <florent.chuffart@ens-lyon.fr>
Date:   Wed Dec 10 17:18:55 2014 +0100

    Adding documentation (FAQ)

diff --git a/README b/README
index 77e4f25..023284a 100644
--- a/README
+++ b/README
@@ -32,7 +32,10 @@ As a counterpart to the access to the source code and  rights to copy,
 modify and redistribute granted by the license, users are provided
 only  with a limited warranty  and the software's author,  the holder
 of the economic rights,  and the successive licensors  have only
-limited liability.
+limited liability. This software is provided with absolutely NO
+WARRANTY. The authors can not be held responsible, even partially, for
+any damage, loss, financial loss or any other undesired facts
+resulting from the use of the software.
 
 In this respect, the user's attention is drawn to the risks associated
 with loading,  using,  modifying and/or developing or reproducing the
@@ -352,3 +355,16 @@ Log in with superuser priviledges. Go to the strains tab, click on the
 'extract genotypes' link above the table Enter IDs of strains to be
 retrieved, separated by blank space or commas. Click on 'extract
 genotypes' button.
+
+
+Clearing Existing Values and Start Over
+---------------------------------------
+
+Existing values can be deleted from the admin tab using the superuser
+password. By doing so, you have to take care of the order in which you
+delete entries. For example, your are allowed to delete an "author"
+only if this author is no longer associated with any item entry
+("strain", "lab book", ...). It is therefore necessary to first delete
+these item entries befor this author. Existing entries can also be
+deleted via SQL requests or through the phpMyAdmin graphical
+interface, using the DUMP TABLE command.
diff --git a/doc/conf.py b/doc/conf.py
index f218a49..46ff0f5 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -50,9 +50,9 @@ copyright = u' since 2007, Florent CHUFFART, Gael YVERT'
 # built documents.
 #
 # The short X.Y version.
-version = '0.1.20'
+version = '0.1.21'
 # The full version, including alpha/beta/rc tags.
-release = '0.1.20'
+release = '0.1.21'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/doc/index.rst b/doc/index.rst
index c79244c..2629302 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -19,6 +19,7 @@ The Software is provided “as is” without warranty of any kind, either expres
 This software is governed by the CeCILL license under French law and abiding by the rules of distribution of free software.  You can  use, modify and/ or redistribute the software under the terms of the CeCILL license as circulated by CEA, CNRS and INRIA at the following URL "http://www.cecill.info".                                                
                                                                           
 As a counterpart to the access to the source code and  rights to copy, modify and redistribute granted by the license, users are provided only  with a limited warranty  and the software's author,  the holder of the economic rights,  and the successive licensors  have only  limited liability.                                                               
+This software is provided with absolutely NO WARRANTY. The authors can not be held responsible, even partially, for any damage, loss, financial loss or any other undesired facts resulting from the use of the software. 
                                                                           
 In this respect, the user's attention is drawn to the risks associated with loading,  using,  modifying and/or developing or reproducing the software by the user in light of its specific status of free software, that may mean  that it is complicated to manipulate,  and  that  also therefore means  that it is reserved for developers  and  experienced professionals having in-depth computer knowledge. Users are therefore encouraged to load and test the software's suitability as regards their requirements in conditions enabling the security of their systems and/or data to be ensured and,  more generally, to use and operate it in the same conditions as regards security.                                     
                                                                           
@@ -304,4 +305,11 @@ Extracting the genotypes of multiple strains when preparing a publication
 Log in with superuser priviledges.
 Go to the strains tab, click on the 'extract genotypes' link above the table
 Enter IDs of strains to be retrieved, separated by blank space or commas.
-Click on 'extract genotypes' button.
\ No newline at end of file
+Click on 'extract genotypes' button.
+
+
+Clearing Existing Values and Start Over 
+--------------------------------------- 
+
+Existing values can be deleted from the admin tab using the superuser password. By doing so, you have to take care of the order in which you delete entries. For example, your are allowed to delete an "author" only if this author is no longer associated with any item entry ("strain", "lab book", ...). It is therefore necessary to first delete these item entries befor this author. Existing entries can also be deleted via SQL requests or through the phpMyAdmin graphical interface, using the DUMP TABLE command.
+
