adding .gitignore
updated .gitignore
force running=false on Executioner when killed, Tail with daemon=true
grammar with include - updated to antlr 4.1
"include" implemented
Force lexer/parser to bailout with exception if parsing error
TestCases could report ok when exceptions thrown in compiler preparsing
Fix issue with filename in root object (BigDataScript)

Now the filename is assigned on construction time, based on the 
underlying ANTLRFileStream
organized imports
add tests cases for include
small fixes in testscases