Add a few error test cases

src/test/conf_examples/badnick_1/error

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+nicknames must be between 1 and 19 characters inclusive

src/test/conf_examples/badnick_1/torrc

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+# This nickname is too long; we won't accept it.
+Nickname TooManyCharactersInThisNickname

src/test/conf_examples/badnick_2/error

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+must contain only the characters \[a-zA-Z0-9\]

src/test/conf_examples/badnick_2/torrc

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+# this nickname has spaces in it and won't work.
+Nickname has a space

src/test/conf_examples/contactinfo_notutf8/error

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+ContactInfo config option must be UTF-8

src/test/conf_examples/contactinfo_notutf8/torrc

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+ContactInfo ÄëÄëÄë@example.com

src/test/conf_examples/relpath_rad/error

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+RunAsDaemon is not compatible with relative paths.

src/test/conf_examples/relpath_rad/torrc

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+
+# Relative-path data directories are incompatible with RunAsDaemon
+DataDirectory ./datadir
+RunAsDaemon 1