[rfc] [icedtea-web] providing little bit more debug outputs for few methods

[Jiri Vanek]

When I was looking to https://bugzilla.redhat.com/show_bug.cgi?id=816592 , I found few information 
missing in debug outputs (especially one consumed exception:-/)

This patch is adding this debug information, and I would like to push it to head and 1.2


Best regards, J.

changelog:
2012-04-27  Jiri Vanek  <jvanek at redhat.com>

	Added more debuging outputs
	* netx/net/sourceforge/jnlp/runtime/JNLPClassLoader.java: (getPermissions):
	Any exception from this method is consumed somewhere. I have catched exception,
	reprint it in debug mode and rethrow (to be lost). Main condition in this
	method had several possible NullPointer exceptions. Separated and thrown before
	this condition.
	(getCodeSourceSecurity): added output messsage when no SecurityDesc is found
	for some url/resource
	* netx/net/sourceforge/jnlp/security/KeyStores.java: (getPathToKeystore):
	new method, able to search for file used for creating of KeyStore if possible
	* netx/net/sourceforge/jnlp/security/CertificateUtils.java: (inKeyStores)
	using getPathToKeystore for debug output.
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