Version 1.0: first release...
26.04.2005: dbSearchSimilarPattern: restrict pattern search to the selected chip.
19.05.2005: .is.log: bug solved: removing NA values now.
20.05.2005: the "Error in wrapup: object Con not found" bug solved... 
23.05.2005: finally solved the TRANSACTION ROLLBACK errors for publishToDB, deleteExperimentFromDB, calculateRegulations
24.05.2005: two color arrays are going to be supported!!!
    - publishToDB and loadFromDB, getMDB and getEDB
    TODO: weights!
25.05.2005: version:1.1.1:
    getMDB, getEDB, publishToDB, deleteExperimentFromDB, dbCalculateRegulations: ids do no longer have to be unique! important for arrays with on array replicates!
    database structure: for expression values, regulation values... data type changed from REAL (float4) to float8
30.05.2005: added new slot to object EexprSet: genes, should contain the annotation of the spots (in the case of two color arrays)
    resolved bug in replaces -> version 1.1.2
10.06.2005: getWeights returns the weigths matrix with the right column and row names
    getM and getA, remove.flagged gives all flagged genes a NA
22.07.2005: geneplotters densCols function in drawMA implemented
22.07.2005: version: 1.1.4

10.01.2006: version: 1.3.3, had some changes earlier...
    getWeights bug solved.
11.01.2006: version: 1.3.4, drawMA modfied, now also Inf values are excluded.
17.01.2006: version: 1.3.5, getM and getA return numerical vectors with names=rownames(@exprs)
11.02.2006: version: 1.3.6, drawVolcanoPlot and average (replicate handling for microarrays) functions added.
02.03.2006: version: 1.3.7, small bug solved in function average. works now also with NA gene IDs.
03.07.2006: version: 1.5.1, average with two new parameters...
12.08.2006: version: 1.5.2, solved possible bug in drawMA in combination with the densCols function from geneplotter.
20.09.2006: version: 1.5.4, solved a bug in .is.log function that returned FALSE although values are in log2 scale if the data contains Inf values.
