add /src/myutil/CheckConnection.java for checking network connection; add popups to notify errors in SearhBox

added task MEC to list of operations. Before to start using the list of Operations for the code generation.

added link tasks2channel and tasks2events. Added buffers and signals to Operation class. Created a list of signals, buffers and operations in TMLCCodeGeneration

#add Dialog Search ; #add option 'External Search' in popup menu; #handle multiselect component for search ; # add Googe crawler and parse in GoogleSearch.java in myutil; #add external library jsoup-1.8.1.jar in bin ; # edit Makefile in order to compile with the library # ! Error: cannot find the library on runtime

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added code for CPs: init code and code for CPs as operations. Still missing: the signals that link CPs and operations