Change transpose for 1D matrices to return a clone of the matrix instead of segfault.

(This behavior was chosen over raising an exception for consistency with numpy behavior.)

Fixes #182.
Add IRC notifications to Travis

According to Travis' documentation[1], this change should add
build results notifications to the #sciruby channel.

[1]: http://docs.travis-ci.com/user/notifications/#IRC-notification
Resolves #150: RSpec redesign

* Conversion to RSpec's `expect` syntax.
fix ArgumentError for dot product on 1-d matrices.(fixes #191)
Merge pull request #195 from rve/issue-191

Fix ArgumentError for dot product on 1-d matrices. Fixes #191.
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Merge pull request #193 from agarie/travis_irc

Add IRC notifications to Travis
Merge branch 'rspec-cleanup' of https://github.com/duggiefresh/nmatrix into duggiefresh-rspec-cleanup

Conflicts:
	spec/00_nmatrix_spec.rb
Merge pull request #190 from cjfuller/fix_182

Change transpose for 1D matrices to return a clone of the matrix instead.
Merge branch 'master' of github.com:SciRuby/nmatrix
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