home.jsp -> change page encoding to UTF-8
mockup view created
This commit closes #3.
This commit is working on issue #1, #2,  #3, #4.
 - closed #1
 - #2 : in progress. sql insert message has been designed. Primary key is auto-incremental, and the sql execution automatically records its time of creation.
 - #3 : Articles are printed in descending order, 10 maximum row, latest on top.
 - #4 : in progress. sql update message has been designed. It records modified time automatically.
can't figure out what's wrong with mybatis input parameter expressions in file "GuestBoardMapper.xml".
The entire code works almost exactly as  I desired  right in front of the door, "GuestBoardDAOImpl.java",
but the mybatis mapper can't understand the input parameter inside the insert query.

The error message goes like this:
------------------------------------------------------------
Syntax error: unexpected 'FROM' [CAS INFO-localhost:33000,2,4312],[SESSION-1382],[URL-jdbc:cubrid:localhost:33000:nhnentdb:dba:********:?charSet=utf-8].
### SQL: INSERT FROM guestboard (id, email, passwd, content, created, modified)   VALUES (    NULL,    ?,    ?,    ?,    SYS_DATETIME,    NULL   )
### Cause: cubrid.jdbc.driver.CUBRIDException: Syntax: In line 1, column 8 before ' guestboard (id, email, passwd, content, created, modified)
------------------------------------------------------------

which says the mapper couldn't get the input parameter represented as like #{email}, #{passwd} or #{content}.

I'm currently working on it to solve the problem.
This is the extension of the last commit.
This commit resolves lastest commit issues.
 - closes #1
 - closes #2, content length limitation is still on the go.
 - closes #3.