added swiftmailer requirement to composer
added swiftmailer requirement to composer
lexik/LexikMailerBundle,gnat42/LexikMailerBundle,Avtonom/EmailTemplateBundle,gnat42/LexikMailerBundle,bendavies/LexikMailerBundle,lexik/LexikMailerBundle,Avtonom/EmailTemplateBundle,bendavies/LexikMailerBundle