minor #17 Issue #16 russian translations fixed (alexlvcom)

This PR was merged into the 1.0-dev branch.

Discussion
----------

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? |no
| Tests pass?   | yes
| Fixed tickets | #16 
| License       | MIT

Fixed translations described in Issue #16 

Commits
-------

a50a172 russian translations fixed

src/Resources/translations/validators.ru.xlf

@@ -8,7 +8,7 @@
             </trans-unit>
             <trans-unit id="2">
                 <source>Your password must include at least one letter.</source>
-                <target>Пароль должен содержать, по крайней мере, один специальный символ.</target>
+                <target>Пароль должен содержать, по крайней мере, одну букву.</target>
             </trans-unit>
             <trans-unit id="3">
                 <source>Your password must include both upper and lower case letters.</source>
@@ -68,7 +68,7 @@
             </trans-unit>
             <trans-unit id="16">
                 <source>rollerworks_password.tip.special_chars</source>
-                <target>добавить специальнгые символы</target>
+                <target>добавить специальные символы</target>
             </trans-unit>
             <trans-unit id="17">
                 <source>rollerworks_password.tip.length</source>