Updated changelog
Removing warnings
Merge pull request #71 from HerbCSO/fix-warnings

Removing warnings
Merged
Remove a warning to load mocha

For this message.

    *** Mocha deprecation warning: Change `require 'mocha'` to `require 'mocha/setup'`.
Specify to use mocha gem in test

Because test-unit gem is already specified.
Specify to use some gems for test by gemspec
Merge pull request #72 from kachick/improve/around_test_env

Improve around test dependencies
Doc: Fix misspelled forwrd_agent option
Return correct ECError class for PKey::EC key type
Merge pull request #73 from rubyphunk/master

Small doc fix and correct error class for PKey::EC key type
Pull latest
Updated changelog
Version Bump (2.6.3)