PersonNote, Datastore

Updated:
Home.jsp
HomeServlet.java
   — login/logout still to do : fix some weird bug with the boolean

-PersonServlet
-UserServlet
  — Clean

PersonDatastore.java
UserDatastore.java
PersonNote.java
  — clean, updated to requirements, fixed date

Timestamp is quite cool… Did you understood how to get the date of
today?
Merge branch 'master' of https://github.com/vdemotz/IntroDBProject