Bug 491847 - Start using StandardCharsets 

For bundles that are at Java 1.7+ level we can start using
StandardCharsets to eliminate the need to handle
UnsupportedEncodingExceoption, reduce risk of mistyping encoding, mark
the strings as non-nls and etc.

Change-Id: I57b45096b934ef4f1a99fad4bb88a8a9ce019005
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
32 files changed