changes in version 1.3.2 (2021-07-27)
+ spatialData moved from colData to int_colData
+ restructuring of vignette and added imgData section

changes in version 1.1.700 (2021-05-05)
+ updating roles in DESCRIPTION file
+ adding GeneExpression biocVie
+ switching LazyData to false
+ fixing return value in show method documentation

changes in version 1.1.6 (2021-02-04)
+ removed additional slots in the SPE class definition 
  (i.e. spatialData and spatialCoordsNames)
+ spatialCoords stored in int_colData() = numeric matrix
+ spatialDataNames stored in int_metadata() 
  = character vector specifying a subset of colData()
+ the SPE show method does not include spatialData in colData;
  instead, spatialData/CoordNames are printed separately
+ the SPE constructor now allows specification of spatialData/Coords/-Names
  where -Names can be a subset of the supplied colData();
  spatialData/Coords are thus optional
+ cbind() now allows duplicated sample_ids, 
  which are made unique with a message
+ consistent usage of "spe" for SpatialExperiment objects across 
  all examples (previously, both ve and se were used as well)
+ fixed cache/path-related error on windows in SpatialImage unit tests
+ added unit-tests of SpatialExperiment class validity
+ imgData field in int_metadata is now required 
  to exist (but can be an empty DFrame)
+ colData<- protects sample_id & spatialDataNames 
  fields; spatialData<- protects colData

changes in version 1.1.5 (2021-31-03)
+ version bump to x.y.z format with .z increment
+ general code-style revision to keep to Bioc guidelines including, e.g.
  + usage of accessors (and not @)
  + keeping to a 80-character limit
  + spaces around logical operators (but not function arguments)
  + in-line { for function definitions, if-else statements etc. 
  + re-ordering of roxygen2 documentation to be consistent across scripts

changes in version 1.1.434 (2021-26-02)
+ fixing subset method according to SummarizedExperiment generic definition

changes in version 1.1.432 (2021-15-02)
+ fixing documentation on latex errors

changes in version 1.1.430-1.1.431 (2021-12-02)
+ adding BumpyMatrix as suggests
+ update documentation

changes in version 1.1.429 (2021-12-02)
+ adding cd_keep = TRUE binds all the colData to the spatialData 
+ fixing bug for cd_keep with multiple elements

changes in version 1.1.428 (2021-12-02)
+ adding itemize to assays vignette item
+ correcting typo cd_keep->cd_bind in spatialData documentation

changes in version 1.1.427 (2021-09-02)
+ fixing tenx vignette

changes in version 1.1.426 (2021-09-02)
+ fixing read10xVisium example with data parameter

changes in version 1.1.425 (2021-08-02)
+ restoring data parameter in read10xVisium
+ missing itemize in combine documentation

changes in version 1.1.424 (2021-07-02)
+ cleaning documentation
+ removing spatialImage-methods.R file

changes in version 1.1.423 (2021-02-02)
+ fixing documentation issues on imgData

changes in version 1.1.422 (2021-29-01)
+ removing ve data because of local image problem
  (using example(read10xVisium) instead)

changes in version 1.1.421 (2021-28-01)
+ fixing ve data local image problem

changes in version 1.1.42 (2021-21-01)
+ implementing new SpatialExperiment class
+ spatialData slot 
+ imgData and image handling methods (HLC)

changes in version 0.99.4 (2020-24-07)
+ implementing bioconductor revisions first round

changes in versionn 0.99.3 (2020-21-07)
+ implementing imagePaths in VisiumExperiment class
+ SpatialExperiment can now be created also without spatial coordinates

changes in versionn 0.99.2 (2020-17-07)
+ adding version 0.99.2

changes in versionn 0.99.1 (2020-09-07)
+ adding version 0.99.1
