Merge pull request #128 from Ashok-matrix/dev

#124 Login error messages completed.
Merge pull request #129 from Ashok-matrix/dev

Merged pull request Re #1 , #2, #5
Mail configuration changes

* Use mailgun for sending emails
* Move mail configuration to environment variables

Re #21

Signed-off-by: Jesus Fernandez <jesus.fndz@gmail.com>
Merge pull request #130 from jesusOmar/dev

Mail configuration changes
#20, Always redirecting to profile after login [DONE]
#12,Allow users to register using LinkedIn [DONE]