simple subset of AQL as grammar for antlr
create a simple AST with antlr (not final)
refactoring the grammar (not finished yet)
added ignore for manually generated antlr3 output
Merge branch 'master' into antlr
generate better AST

this will put all ANDs or ORs in one row
represent single term in AST and begin working on linguistic operators
support for basic linguistic operators (not parameterized)
precedence defined in grammar
first ideas for AST for dominance and precedence
Merge remote-tracking branch 'origin/master' into antlr
moved Aql.g
formulating AST for dominance and pointing relations
left/right child and common ancestor operators
(token-) arity needs a number
copy and paste error removed

Signed-off-by: Thomas Krause <thomas@berlin-reloaded.de>
support for edge annotation

also throw exception if query is not matching
change or parser examples
we support multiple edge annotations
Merge branch 'refs/heads/master' into antlr