This removes the POILogger and POILogFactory mechanism for logging. This mechanism was created at a time when the Java landscape looked very different than it does today.

Log4j 2 is an Apache Foundation project that is well maintained and is widely regarded as having good performance and capabilities. We use only the Log4j API artifact. This lets application developers choose how they want to capture logging events if at all. Integrations with Log4j 2 Core and Logback are available from the Log4j project.

Closes #224

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constant name to match the regular expression '^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$'
reorder "final static" -> "static final"

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This makes toString() implementations obsolete.

This also contains preparation for #64036 to (maybe) change the record factory interface of HSSF. 

Remove duplicated record SeriesToChartGroupRecord, which is a duplicate of SeriesChartGroupIndexRecord.

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(eclipse) source clean ups

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also includes fixes for
- name shadowing 
- unused deprecated method "getClipRect" in classes extending Graphics2d
- HexDump - replaced intermediate String.format calls with custom padding
- convert testcases to junit4
- closing resources

also tested with an arbitary timezone (PST) and locale (ru)

supresses forbidden apis check for
- LocaleUtil (the only place where Locale.getDefault() and TimeZone.getDefault() should be called)
- Classes using FontMetrics - without the actual text it's difficult to return something sane

Some usage of UTC and Locale.ROOT might be still wrong, e.g. in MapiMessage we don't access the
extended mapi properties, which might contain the timezone

DataFormatter has now a Observable property which need to be observed when custom formats are used
and the Locale changes

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* Also handle a XLSX which does not have row-numbers in the sheet-xml. Excel can read it so it makes sense to also allow to read it in the XSSFSheetXMLHandler 
* Remove some Eclipse warnings in test-code

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  r709263 | josh | 2008-10-30 15:07:26 -0700 (Thu, 30 Oct 2008) | 1 line
  
  Removed dodgy superlcass implementation of Record.getRecordSize()
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  r709264 | josh | 2008-10-30 15:13:56 -0700 (Thu, 30 Oct 2008) | 1 line
  
  Introduced Record.getDataSize() method
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  r709317 | josh | 2008-10-30 18:02:55 -0700 (Thu, 30 Oct 2008) | 1 line
  
  converted getRecordSize methods to getDataSize
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  r700280 | josh | 2008-09-29 15:04:20 -0700 (Mon, 29 Sep 2008) | 1 line
  
  Fix for bug 45876 - allowed BoundSheetRecord to take sheet names longer than 31 chars
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  r700304 | josh | 2008-09-29 16:12:53 -0700 (Mon, 29 Sep 2008) | 1 line
  
  Updated formula evaluator documentation due to bugzilla 45768
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  r700327 | josh | 2008-09-29 19:30:53 -0700 (Mon, 29 Sep 2008) | 1 line
  
  Removed validateSid method from Record classes
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  r700356 | josh | 2008-09-29 23:18:44 -0700 (Mon, 29 Sep 2008) | 1 line
  
  Refactored fillFields() method into constructor in Record class hierarchy
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Quite a lot of manual fixing required. Also moved CellValue to top level class.  
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  r696860 | josh | 2008-09-18 17:02:21 -0700 (Thu, 18 Sep 2008) | 1 line
  
  code clean-up (removed compiler warnings/unused methods)
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  r696898 | josh | 2008-09-18 19:19:58 -0700 (Thu, 18 Sep 2008) | 1 line
  
  Partitioning common formula logic.  Introduced FormulaParsingWorkbook and EvaluationWorkbook interfaces to make merge with ooxml branch easier
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  r687403 | nick | 2008-08-20 19:14:11 +0100 (Wed, 20 Aug 2008) | 1 line
  
  Make an initial start on hpbf code
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  r687423 | nick | 2008-08-20 19:50:15 +0100 (Wed, 20 Aug 2008) | 1 line
  
  More HPBF stuff, and some tests
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  r687429 | nick | 2008-08-20 20:40:05 +0100 (Wed, 20 Aug 2008) | 1 line
  
  Quill CONTENTS bits, and tests
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  r687443 | nick | 2008-08-20 21:13:08 +0100 (Wed, 20 Aug 2008) | 1 line
  
  HPBF text extractor and unit tests
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  r688426 | josh | 2008-08-23 23:47:51 +0100 (Sat, 23 Aug 2008) | 1 line
  
  Fix for bug 45672 - prevent MissingRecordAwareHSSFListener generating multiple LastCellOfRowDummyRecords when shared formulas are present
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  r688642 | josh | 2008-08-25 08:56:37 +0100 (Mon, 25 Aug 2008) | 1 line
  
  JDK 1.4 fixes for new hpbf stuff. Some clean-up
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  r688650 | josh | 2008-08-25 09:09:02 +0100 (Mon, 25 Aug 2008) | 1 line
  
  Initial support for evaluating external add-in functions like YEARFRAC
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  r688655 | josh | 2008-08-25 09:30:54 +0100 (Mon, 25 Aug 2008) | 1 line
  
  Fix for bug 45682 - allow cloning of sheets with conditional formatting
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  r688825 | josh | 2008-08-25 19:57:14 +0100 (Mon, 25 Aug 2008) | 1 line
  
  Fix for small bug introduced in c688655 - keep header field in sync with number of rules
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  r688910 | josh | 2008-08-25 23:41:08 +0100 (Mon, 25 Aug 2008) | 1 line
  
  Replaced calls to deprecated versions of createCell(), getCell(), createRow(), and getRow(). (Changing short to int)
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