new version merged from branch 2.7

New feature : Allow admins to receive a copy of all emails sent by th…

…e plugin

Add nb_NO, thanks to paulen
Update pt_PT, thanks to ANO
Update ru_RU, thanks to Konve
Update pt_BR, thanks to flaviove
Update da_DK, thanks to Kaare
Update nl_NL, thanks to Kees Hessels
Update de_DE, thanks to Yogie
Update lv_LV, thanks to agrisans
Update es_ES, thanks to petaqui
Update el_GR, thanks to bas_alba
Update it_IT, thanks to Ericnet

Next version is 2.70.2 :

Update and fix nl_NL, thanks to : ddtddt

Next version is 2.60.4

Update and fix nl_NL, thanks to : ddtddt

Add nl_NL, thanks to : Ellin-E

Next version is 2.60.3

fix preg_replace(): The /e modifier is deprecated (thx to mistic100)
Update pt_BR, thanks to : flaviove, oigreslima and msakik
Add nl_NL, thanks to : Ellin-E

Create tag 2.7.0 from branch 2.7

Update da_DK, thanks to : Kaare

Update ru_RU, thanks to : Konve
Update sk_SK, thanks to : JoeKundlak
Update pt_PT, thanks to : ANO
Update pt_BR, thanks to : flaviove

Next version is 2.6.1 (2.60.1 in PEM):

Fix bug with UAM module in PWG_Stuff (thx to Gabeek for reporting)
Obsolete translation keys cleanup
Update el_GR, thanks to : bas_alba
Update pt_BR, thanks to : flaviove
Update lv_LV, thanks to : agrisans
Update it_IT, thanks to : Ericnet
Update de_DE, thanks to : Joergen
Update es_ES, thanks to : jpr928

Create tag 2.6.0 from branch 2.6 :

Piwigo 2.6 compliance
Improve email sending workflow
Update pt_BR, thanks to : flaviove
Update pt_PT, thanks to : Bridges
Add sk_SK, thanks to : JoeKundlak
Update sk_SK, thanks to : JoeKundlak