Bumped to v0.1.5

Added Travis button/indicator and lowered require to Julia 0.3
prerelease’s
Tag MixedModels v0.3.7
Merge pull request #1171 from WestleyArgentum/metadata-v2

Tag Requests v0.0.5
Merge pull request #1172 from dmbates/pull-request/648c51be

Tag MixedModels v0.3.7
Atempting to fix Stan.jl in METADATA
Merge pull request #1173 from goedman/metadata-v2

Updating tags for HyperDualNumbers and Stan.
Tag JuliaParser v0.5.0
Merge pull request #1174 from jakebolewski/metadata-v2

Tag JuliaParser v0.5.0
Tag Homebrew v0.1.4
Merge pull request #1175 from staticfloat/pull-request/c18050dc

Tag Homebrew v0.1.4
Tag TensorOperations v0.1.1
Tag LinearMaps v0.1.1
Merge pull request #1176 from Jutho/pull-request/7093a1d9

Tag patches to LinearMaps and TensorOperations
Tag MixedModels v0.3.8
Merge pull request #1177 from dmbates/pull-request/2b1d46b5

Tag MixedModels v0.3.8
Tag CRC v1.0.0
Merge branch 'metadata-v2' of git://github.com/JuliaLang/METADATA.jl into metadata-v2
Merge pull request #1178 from andrewcooke/pull-request/9749462f

Pull request/9749462f
Tag DSP v0.0.4
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