fix the jasmine testing code
revert debug code mixed in previous checkin.
remove debugging code in previous submission.
add encryptSign and descryptVerify, plus jasmine test.
replace some any type.
improve typescript declaration.
Add generateKey and deleteKey
address comment by lucas.
uproxy-lib 8.x update
update to use new logger implementation from uproxy-lib
remove unused fields so that we don't keep 'any' type, as suggested by Lucas.
Merge pull request #1 from uProxy/shanjian-add-test

fixed the issue that caused jasmine test to fail, and revise api exposed.