Bumped to v0.1.5

Added Travis button/indicator and lowered require to Julia 0.3
prerelease’s
Tag GradientBoost v0.0.1
Merge pull request #1133 from svs14/metadata-v2

Tag GradientBoost v0.0.1
Tag MolecularDynamics v0.1
Merge pull request #1134 from wesbarnett/metadata-v2

Tag MolecularDynamics v0.1
sha: moved to sha1
sha: move to sha1
Merge pull request #1135 from wesbarnett/metadata-v2

Correct "sha" to "sha1"
Tag MolecularDynamics 0.1.1
Merge pull request #1136 from wesbarnett/metadata-v2

Tag MolecularDynamics 0.1.1
Tag Gtk v0.7.1
Tag Images v0.2.46
Merge branch 'metadata-v2' of git://github.com/JuliaLang/METADATA.jl into metadata-v2
Merge pull request #1137 from rsrock/pull-request/bfada7d6

Tag Images v0.2.46
Tag Quandl v0.3.10
Merge pull request #1138 from milktrader/pull-request/6cc5a0f3

Tag Quandl v0.3.10
Tag Images v0.2.47
Merge pull request #1139 from rsrock/pull-request/130eb59e

Tag Images v0.2.47
Tag Cairo v0.2.15
Tag Orchestra v0.0.5