DOC: describe creating of a new data type
DOC: added description of creationg a new operation
DOC: reference docs. for operations and data types
DOC: rewritten documentation to data types
DOC: adopted comments to data types
DOC: rewritten of operation's documentation
DOC: remove datatypes adding convention
DOC: written the documentation to setting widget
DOC: actualize documentation
DOC : implements standa's notes

Conflicts:
	docs/developersguide.txt
ENH: show tools after run app with tracelog
RF: exchange argument to parameter and vice versa
FIX: fixed bugs after change API
RF: moved user settings from datatype to the source instace
FIX: fixed bug; remove source after restore into other file
DOC: implements my notes
DOC: synchronize source code for datatypes and dev. guide
RF: Small renaming in statespace analysis
RF: synchronize code of extensions and dev. guide
DOC: synchronize extensions code and dev. guide