Fix dead link to the F.A.Q. concerning the server charset encoding check warning

Only a dead link replaced with the actual link to the corresponding section in the F.A.Q.
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Merge pull request #287 from zertrin/patch-1

Fix dead link to the F.A.Q. about the server charset encoding check warning
We do not extends AJXP_Plugin, don't use $this->log*

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
We do not extends AJXP_Plugin (we implements AjxpWrapper), don't use $this->log*

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Merge pull request #292 from echampet/log2

Correct log refactoring
Remove exit() instruction
Shared users: inherit parent personalRole if the parameter is marked as inherit.
Code styling
Merge remote-tracking branch 'origin/master'