Revert "read me"

This reverts commit 1dc28aebe6ef73b366cd8b8975258b1698c33409.
modifty the search part

/search this week
/search next week
/search this month
/search next month
Add @author (Cheuk Ting)
Merge remote-tracking branch 'origin/khye_an'
Merge branch 'master' of https://github.com/cs2103w7Group4/todo_manager
Add @author (Khye An)
input check for excess length and illogical dates
update the checklist of read me
little change

don't affect the demostration
Runnable jar file for todo manager
@author
fixed /add /on bug from dem
search test
prettyDate shows day-of-the-week even for next year
Various changes / fixes

- "/help" and "help" accepted as commands
- F3 to see commands included in help message
-Rearranged some help messages to look better.
-Adding / deleteing / editting should show entrylist without having to
press display again
Improved help messages