formatting files according to standard (#1619)

* added EditorConfig linting
* adding `eclint` as Travis script target
* re-adjusted .pem files to have a newline

test/config/dovecot-lmtp/dovecot-sql.conf.ext

@@ -29,7 +29,7 @@
 # );
 
 # Database driver: mysql, pgsql, sqlite
-#driver = 
+#driver =
 
 # Database connection string. This is driver-specific setting.
 #
@@ -54,7 +54,7 @@
 #     option_file         - Read options from the given file instead of
 #                           the default my.cnf location
 #     option_group        - Read options from the given group (default: client)
-# 
+#
 #   You can connect to UNIX sockets by using host: host=/var/run/mysql.sock
 #   Note that currently you can't use spaces in parameters.
 #
@@ -93,7 +93,7 @@
 #   %u = entire user@domain
 #   %n = user part of user@domain
 #   %d = domain part of user@domain
-# 
+#
 # Note that these can be used only as input to SQL query. If the query outputs
 # any of these substitutions, they're not touched. Otherwise it would be
 # difficult to have eg. usernames containing '%' characters.