Minor fixes

• [FIX] Accounts history was not checked for missing groups Id when upgrading. Related #466. Thanks to @Yotouille for the feedback
• [FIX] Ajax requests were not detected in some environments. Related #466. Thanks to @lukasp2 for the feedback
• [MOD] Modified tab behavior when tabbing through account form fields.
• [FIX] Fixed duplicated user login when adding/updating an LDAP user record during log in. Solves  #468. Thanks to @zulink
• [MOD] Increased account notes field char length . Thanks to @davidkast for the feedback.
• [FIX] Fixed issue when retrieveing Authenticator plugin data for the current user. Closes  #442. Thanks to @fellsho, @st3reo and @HellChords for the feedback
• [FIX] Fixed blank account name when deleted