fixed crash on fb2 parser couldn't parse xml encoding

This is probably bug in xml parser library, for now just catched all exceptions so if something wrong in library - skip book details and show as is

Here is example of log:
01-18 15:05:48.539: W/System.err(2932): java.io.IOException: Unknown encoding
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.Fb2InstantParser.getXmlEncoding(Fb2InstantParser.java:92)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.Fb2InstantParser.createSource(Fb2InstantParser.java:47)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.Fb2InstantParser.<init>(Fb2InstantParser.java:40)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.InstantParser.parseFb2Zip(InstantParser.java:68)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.InstantParser.parseFile(InstantParser.java:40)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.Parser.parse(Parser.java:48)
01-18 15:05:48.539: W/System.err(2932): 	at ebook.parser.Parser.parse(Parser.java:35)
01-18 15:05:48.539: W/System.err(2932): 	at com.harasoft.relaunch.BooksBase.getEbookName(BooksBase.java:175)
01-18 15:05:48.539: W/System.err(2932): 	at com.harasoft.relaunch.BooksBase.getEbookName(BooksBase.java:216)
01-18 15:05:48.539: W/System.err(2932): 	at com.harasoft.relaunch.ReLaunch.drawDirectory(ReLaunch.java:1130)
01-18 15:05:48.539: W/System.err(2932): 	at com.harasoft.relaunch.ReLaunch.onStart(ReLaunch.java:2695)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1129)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.Activity.performStart(Activity.java:3740)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.Activity.performRestart(Activity.java:3768)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.Activity.performResume(Activity.java:3773)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2937)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2965)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1889)
01-18 15:05:48.539: W/System.err(2932): 	at android.os.Handler.dispatchMessage(Handler.java:99)
01-18 15:05:48.539: W/System.err(2932): 	at android.os.Looper.loop(Looper.java:123)
01-18 15:05:48.539: W/System.err(2932): 	at android.app.ActivityThread.main(ActivityThread.java:4363)
01-18 15:05:48.547: W/System.err(2932): 	at java.lang.reflect.Method.invokeNative(Native Method)
01-18 15:05:48.547: W/System.err(2932): 	at java.lang.reflect.Method.invoke(Method.java:521)
01-18 15:05:48.547: W/System.err(2932): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
01-18 15:05:48.547: W/System.err(2932): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
01-18 15:05:48.547: W/System.err(2932): 	at dalvik.system.NativeStart.main(Native Method)