pick a column from central list

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

small bug fix

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

added own style

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

not display column name that already exist in tabl

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

added search to the pick column dialog

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

Fix coding style

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

check for central columns configuration relation

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

pagination in pick coulumn dialog

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

code cleanup

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>

Fix coding style

Signed-off-by: Smita Kumari <kumarismita62@gmail.com>
Merge pull request #1206 from smita786/gsoc_central_columns_list

Using central list of columns : pick a column from central list