Update history tabular format

Update history structure changed to tabular format and multiple enteries
in view is removed. Only one latest entry of can be viewed in view
details page.
Merge remote-tracking branch 'origin/master' into 1.3maintain_update_history
Update history view changes

Update history in view details page is retrieved from leads table and
displayed in table structure
Date column added in update history

Date column added in update history
Country table field name changes

Country table field name changes
Changes suggested in auto correction module

Autocorrect :
i.   Remove 'Rule' drop-down from 'Add Rule' form.
ii.  On 'Add Rule' there should be only two options 'Active' and
'Inactive' in 'Status' drop-down.
'Active' option should be selected by default for new
iii. Please change the sequence of input fields as 'Match With',
'Correct With', 'Applicable To',
'Category', 'Status'
iv.  Change 'Applicable To' and 'Category' to drop-down :
v.   Test 'Add rule' functionality thoroughly. If there is any mandotory
field, error messages should be displayed.
if form is submitted butr record is not getting saved, then error should
be displayed.
Sweepstake Registration:
i. If value is not entered, there should not be any validation on the
field. Please note there is no mandatory field on registration form
except optin checkbox
Validation added

Required field validation added to the first name and last name field in
sweepstakes
blacklist changes local

blacklist changes local