Fix #54891 - correct javadoc on HSSF + SS (XSSF was correct) for Row.createCell(int,int)

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1479639 13f79535-47bb-0310-9956-ffa450edef68
Add Eclipse Project files.

Change Java7.
Update Library.

Replace Log4j to slf4j.
Replace System.getProperty("line.separator") to System.lineSeparator()
fixed stream close by AutoCloser.
Create README.md
remove commons-logging library.
add static for Logger
Replace System.getProperty("line.separator") to System.lineSeparator()
Replace ByteArrayOuputStream to FastByteArrayOutputStream.
replace Vector to ArrayList.

remove not used code.
Replace ArrayList<Integer> to IntArrayList
remove LittleEndianConsts.

remove stax-api library.
Xmlbeansの生成するコードから同期コードを削除する機能追加
add Custom XmlBeans Library.
xmlbeansによる生成コードの改良に伴うコード修正
Replace IntList to IntArrayList.
Replace List<Long> to LongArrayList.

Replace List<Double> to DoubleArrayList.
replace new Double() to Double.valueOf().
remove ShortList.