0.9.13	19-May-2013 Xiuwen Zheng <zhengx@u.washington.edu>

	* compiler issue fix: Solaris 10
	* fixes an error in the CITATION file
	* uses 'inherits' to check the inheritance of object install 'class() =='


0.9.12	18-Feb-2013	Xiuwen Zheng <zhengx@u.washington.edu>

	* support variable-length string ****
	* add an argument 'path' to the function 'index.gdsn', which uses '/' as a separator ****
	* support a faster defragmentation algorithm in 'cleanup.gds'
	* 'character' in the function 'add.gdsn' refers to variable-length string by default
	* fixed-length strings are "fstring", "fstring16" and "fstring32" in the function 'add.gdsn'
	* variable-length string are 'string', 'string16' and 'string32' in the function 'add.gdsn'
	* support the 'R.invisible' attribute to hide a GDS node, until adding 'all=TRUE' to 'print.gds.class' or 'print.gdsn.class'
	* improve the display of hierarchical structure
	* the argument "storage" in the function 'add.gdsn' is not case-sensitive now
	* minor bug fix in 'readex.gdsn'
	* add a vignette


0.9.11	25-Jan-2013	Xiuwen Zheng <zhengx@u.washington.edu>

	* bug fix: add a folder using 'add.gdsn'
	* it is more efficient to store a factor variable
	* 'put.attr.gdsn' allows a vector with more than one elements
	* 'apply.gdsn' is recoded in C
	* improve 'clusterApply.gdsn'
	* the function 'applylt.gdsn' is merged into 'apply.gdsn' now
	* the function 'clusterApplylt.gdsn' is merged into 'clusterApply.gdsn' now
	* the class name 'gdsclass' is replaced by 'gds.class'
	* the class name 'gdsn' is replaced by 'gdsn.class'


0.9.10	25-Aug-2012	Xiuwen Zheng <zhengx@u.washington.edu>

	* add RUnit tests
	* fix warnings
	* fix a bug: correct the dimension size of array data with more than two dimensions
	* fix bugs: 'append.gdsn' appends data of bit9, bit10, etc, correctly
	* fix a minor bug of compression stream
	* change 'wstring' to 'string16' in add.gdsn
	* change 'dwstring' to 'string32' in add.gdsn


0.9.9	18-May-2012	Xiuwen Zheng <zhengx@u.washington.edu>

	* to support GCC4.7 compiler


0.9.8	16-Apr-2012	Xiuwen Zheng <zhengx@u.washington.edu>

	* fix minor bugs


0.9.7	17-Mar-2012	Xiuwen Zheng <zhengx@u.washington.edu>

	* add two functions to support the parallel package (R 2.14.0): 'clusterApply.gdsn', 'clusterApplylt.gdsn'


0.9.1-0.9.6	05-Mar-2012	Xiuwen Zheng <zhengx@u.washington.edu>

	* fix minor bugs


0.9.0	04-Jan-2011	Xiuwen Zheng <zhengx@u.washington.edu>

	* first public release of gdsfmt