Replace CookieJar for fix bug and append delete function.

Fix bug : Session Cookie is saved by CookieJar.

Append Clear cookies function.

Fix bug : Session Cookie is saved by CookieJar.

Append Clear cookies function.

Fix bug : From the removal of expired cookie, do not remove session cookie.
Merge branch 'fix-cookie-pullreq' of https://github.com/hermit4/KanmusuMemory into fix-cookie-pullreq

Conflicts:
	cookiejar.cpp