Create README.md
Preparations for building the abstract syntax tree (AST)
Merge branch 'sbb'

Conflicts:
	de.czempin.nicnac16.compiler/src/de/czempin/nicnac16/compiler/Expression.java
fixed compile errors
made the output look nicer
preparing to connect the parsing with the AST
preparing to use states
some basic recognition of functions
start to deal with "punctuation"
cleanup
provided skeleton for functions
starting to recognize statements
distinguish between statements a little bit
starting to support some more statements
mini-cleanup
starting to nest
starting to handle IF
cleanup & more test input
build the condition
collect values for assignment