search for phrases

[antgonza]

if you search for phrases the command fails:

$ redbiom search metadata "red house"
Traceback (most recent call last):
  File "/Users/antoniog/.virtualenvs/qiita/bin/redbiom", line 11, in <module>
    load_entry_point('redbiom', 'console_scripts', 'redbiom')()
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/antoniog/.virtualenvs/qiita/lib/python2.7/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/Users/antoniog/svn_programs/redbiom/redbiom/commands/search.py", line 87, in search_metadata
    for i in redbiom.search.metadata_full(query, categories):
  File "/Users/antoniog/svn_programs/redbiom/redbiom/search.py", line 51, in metadata_full
    stemmer=stem_f))
  File "/Users/antoniog/svn_programs/redbiom/redbiom/set_expr.py", line 84, in seteval
    formed = ast.parse(str_, mode='eval')
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ast.py", line 37, in parse
    return compile(source, filename, mode, PyCF_ONLY_AST)
  File "<unknown>", line 1
    red house
            ^
SyntaxError: unexpected EOF while parsing