New features and bugfix for issue with sqlmapapi

Features:
1) Added support for the --time-sec option
2) Added ability to remove scan IDs from the logs drop down to get rid
of clutter (or in case a sqlmapapi server is killed or whatever)
2) Added ability to remove scan IDs from the stop scans drop down to get
rid of clutter (or in case a sqlmapapi server is killed or whatever)

Bugfix:
1) Updates to sqlmap have added new CSRF options.  Sqlmap expects a
default from sqlmapapi that isn't passed in.  I am manually setting it
in sqlmapapi to avoid the issue.