added string-trimming.
added string-trimming.

AmiArt/treefrog-framework,treefrogframework/treefrog-framework,treefrogframework/treefrog-framework,AmiArt/treefrog-framework,treefrogframework/treefrog-framework,AmiArt/treefrog-framework,AmiArt/treefrog-framework,AmiArt/treefrog-framework,treefrogframework/treefrog-framework,treefrogframework/treefrog-framework