TableSchema

Commit before merging
Merge branch 'master' of https://github.com/vdemotz/IntroDBProject

Conflicts:
src/ch/ethz/inf/dbproject/sqlRevisited/TableSchema.java
ignore tables of DB
Merge branch 'master' of https://github.com/vdemotz/IntroDBProject

Try to merge.
Added the database.

Conflicts:
	src/ch/ethz/inf/dbproject/sqlRevisited/AttributedTableSchema.java
	src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SQLSemanticException.java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeBaseRelationNode
.java
	src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeCrossNode.java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeGroupByNode.java
	src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeNode.java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeNodeDistinct.jav
a

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeProjectAndAggreg
ateOperatorNode.java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeRenameTableNode.
java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeSelectionOperato
rNode.java

src/ch/ethz/inf/dbproject/sqlRevisited/Parser/SyntaxTreeSortOperatorNode
.java
	src/ch/ethz/inf/dbproject/sqlRevisited/SQLType.java
	src/ch/ethz/inf/dbproject/sqlRevisited/TableSchema.java
	src/ch/ethz/inf/dbproject/sqlRevisited/TableSchemaAttributeDetail.java
	src/ch/ethz/inf/dbproject/sqlRevisited/test/SyntaxTreeNodeTest.java