Fix issue on jDao when using a dao with several profiles

When retrieving a dao at different time with different profiles, we always
retrieve the first one. We should have a dao instance for each profile
sqlite3 plugin: support of sqlite extensions

The profile may have an "extensions" properties containing name of
all extensions you want to activate.
Fixed variable error in jBasicErrorHandler
Fix bug: controllers could not access any more to session variables

Close #166
Release Jelix 1.3.9
Bumped version to 1.3.10pre.SERIAL
Merge branch 'jelix-1.3.x' into jelix-1.4.x

Conflicts:
	lib/jelix/VERSION
	testapp/VERSION
Release Jelix 1.4.6
Bumped version to 1.4.7pre.SERIAL
Merge branch 'jelix-1.4.x' into jelix-1.5.x

Conflicts:
	lib/jelix/VERSION
	testapp/VERSION
Release Jelix 1.5.4
Bumped version to 1.5.5pre.SERIAL
Merge branch 'jelix-1.5.x' into jelix-1.6.x

Conflicts:
	lib/jelix/VERSION
	testapp/VERSION
Release Jelix 1.6.1
Bumped version to 1.6.2pre.SERIAL