[new]link to profile and tooltip for participants , [fix]cannot submit question and answer , [fix]show user login in edit profile , [new]Option for private question, [fix]ask button align

[new]link to profile and tooltip for participants 
 [fix]cannot submit question and answer 
 [fix]show user login in edit profile
please move if condition inside: ap_recaptcha_validation function.
`if(!ap_opt('captcha_ask')) return;`