Copied trust / key material management and TLS/SSL utility classes from HttpClient

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603855 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603917 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603918 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603919 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603920 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603922 13f79535-47bb-0310-9956-ffa450edef68
Javadoc: a little better grammar (IMO).

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603924 13f79535-47bb-0310-9956-ffa450edef68
Javadoc: Add missing tag.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603927 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603928 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603929 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8.

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603930 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8. Replace "<tt>Foo</tt>" with "{@code Foo}".

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603932 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8. Replace "<tt>Foo</tt>" with "{@code Foo}".

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603933 13f79535-47bb-0310-9956-ffa450edef68
Javadoc fixes for Java 8. Replace badly formed HTML "<tt>Foo<tt/>" with "{@code Foo}".

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpcore/trunk@1603936 13f79535-47bb-0310-9956-ffa450edef68