[vle-x/trunk/erecord/erecord/install/prod] add webrecord documentation install (as /var/www/misc/webrecord)

Some modifications, that had been done manually into the source code of the
production Virtual Machine, have been taken into account.

if not exist.

building options

and Minor modification (updating ubuntu version)

- adding django_admin_log into admin.py
- adding access.log file production and using
- other minor modifications

- updating docs/vpzpages (adding vle version, deleting pattern case).
- documentation

Minor modifications and corrections, especially to maintain compatibility with previous erecord version (vle-1.1) :
- parameter value types : same values as before (double, boolean...) instead of DOUBLE, BOOLEAN...
- case of empty simulation results
- documentation

Adding several vle versions management : adding VleVersion, adding fields to VpzAct (vlevlersion, vleusrpath), adding erecord_conf rule for VpzPath case...

Taking into account all current works (merging baudrimont and genotoul local codes).

=> TO BE TESTED/VALIDATED

Updating vle-x/branches/001_history,002_deployment,003_help_notes according to local version (ERECORD2) using erecord package instead of pyvle

Updating vle-1.1/../002_deployment/history according to version installed under erecord VM (147.100.164.34)

Creation of vle-x new erecord developmemt version, by export of previous version (vle-1.1).

New erecord development version : without pyvle (using simulations of erecord pkg), for vle-2 (and maybe several vle versions at the same time, later on), to use cluster.
Chronology of erecord development versions : vle-1.0 < vle-1.1 < vle-x