Update env.sample - export all variables

app/env.sample

 # Database
-SQL_HOST=127.0.0.1
-SQL_PORT=3306
-SQL_DATABASE=soutien
-SQL_USER=soutien
-SQL_PASSWORD=soutien
+export SQL_HOST=127.0.0.1
+export SQL_PORT=3306
+export SQL_DATABASE=soutien
+export SQL_USER=soutien
+export SQL_PASSWORD=soutien
 
 # Phinx configuration
-PHINX_HOST=${SQL_HOST}
-PHINX_PORT=${SQL_PORT}
-PHINX_DATABASE=${SQL_DATABASE}
-PHINX_USER=${SQL_USER}
-PHINX_PASSWORD=${SQL_PASSWORD}
+export PHINX_HOST=${SQL_HOST}
+export PHINX_PORT=${SQL_PORT}
+export PHINX_DATABASE=${SQL_DATABASE}
+export PHINX_USER=${SQL_USER}
+export PHINX_PASSWORD=${SQL_PASSWORD}
 
-SYSADMIN=replacewithyour@email.com
-FDNNURL1=https://secure.fd2n.org/fd2n/cb
-FDNNURL2=https://secure.fdn2.org/fdn2/don
-BASE_DOMAIN=dev.laquadrature.net
+export SYSADMIN=replacewithyour@email.com
+export FDNNURL1=https://secure.fd2n.org/fd2n/cb
+export FDNNURL2=https://secure.fdn2.org/fdn2/don
+export BASE_DOMAIN=dev.laquadrature.net
 
-PAYMENT_URL=http://localhost:5001/payment
-RETURN_CHECK_URL=
-SITE_ID=XXXXXXXX
-CERTIFICATE=XXXXXXXXXXXXXXXXXXXXXXXXx
-CTX_MODE=TEST
+export PAYMENT_URL=http://localhost:5001/payment
+export RETURN_CHECK_URL=
+export SITE_ID=XXXXXXXX
+export CERTIFICATE=XXXXXXXXXXXXXXXXXXXXXXXXx
+export CTX_MODE=TEST
 
-PIPLOME_PATH=/var/www/site/pdf/
-PIPLOME_URL=https://www.laquadrature.net/pdf/
+export PIPLOME_PATH=/var/www/site/pdf/
+export PIPLOME_URL=https://www.laquadrature.net/pdf/
 
-CAMPAIGN_START_DATE=2016-11-10
-CAMPAIGN_BUDGET=321000
+export CAMPAIGN_START_DATE=2016-11-10
+export CAMPAIGN_BUDGET=321000
 
-LOGS=./
+export LOGS=./
 
-SMTP_HOST=smtp.example.com
-SMTP_PORT=25
-SMTP_SECURITY=none
-SMTP_USER=user
-SMTP_PW=password
+export SMTP_HOST=smtp.example.com
+export SMTP_PORT=25
+export SMTP_SECURITY=none
+export SMTP_USER=user
+export SMTP_PW=password
 
-DEBUG=0
+export DEBUG=0
 
-ENV=dev
+export ENV=dev