LT-274: Fix blank date in last login dialog on first logon

- Remove redundant lastLoginModal.js file
- Refactor userAccountMenu.js

LesionTracker/.meteor/packages

@@ -64,3 +64,4 @@ fastclick@1.0.12
 standard-minifier-css@1.1.8
 standard-minifier-js@1.1.8
 johdirr:meteor-git-rev
+u2622:persistent-session

LesionTracker/.meteor/versions

@@ -3,6 +3,7 @@ accounts-password@1.2.12
 aldeed:simple-schema@1.5.3
 aldeed:template-extension@4.0.0
 allow-deny@1.0.5
+amplify@1.0.0
 anti:gagarin@0.4.11
 anti:i18n@0.4.3
 arsnebula:reactive-promise@0.9.1
@@ -124,6 +125,7 @@ tracker@1.1.0
 twbs:bootstrap@3.3.6
 typ:accounts-ldap@1.0.1
 typ:ldapjs@0.7.3
+u2622:persistent-session@0.4.4
 ui@1.0.11
 underscore@1.0.9
 url@1.0.10