Update newsDoc style and integrate previous log changes

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 tsam's Change Log
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-In tsam's latest release (1.1.2) the following functionalities were included:
+*********************
+Release version 1.1.2
+*********************
+
+tsam release (1.1.2) includes the following new functionalities:
 
 * Added first version of the k-medoid contiguity algorithm.
+
+*********************
+Release version 1.1.1
+*********************
+
+tsam release (1.1.1) includes the following new functionalities:
+
+* Significantly increased test coverage 
+* Separation between clustering and representation, i.e. for clustering algorithms like Ward’s hierarchical clustering algorithm the representation by medoids or centroids can now freely be chosen.
+
+*********************
+Release version 1.1.0
+*********************
+
+tsam release (1.1.0) includes the following new functionalities:
+
+* Segmentation - the clustering of adjacent time steps - according to Pineda et al. (2018)
+* k-MILP - an extension of the MILP-based k-medoids clustering that allows automatic identification of extreme periods according to Zatti et al. (2019)
+* The option to dynamically choose whether to clusters found should be represented by their centroid or medoid.