Bumped to v0.1.5

Added Travis button/indicator and lowered require to Julia 0.3
prerelease’s
update requires with JSON
fix version requirement for Calculus.jl

Fix https://github.com/johnmyleswhite/Calculus.jl/issues/53
Tag TopicModels v0.0.1

1. example works now
2. slight speed update
Merge pull request #971 from luoq/metadata-v2

Tag TopicModels v0.0.1
Tag OpenCL v0.2.6
Merge pull request #972 from jakebolewski/metadata-v2

Tag OpenCL v0.2.6
Tag PyPlot v1.2.8
Merge branch 'metadata-v2' of git://github.com/JuliaLang/METADATA.jl into metadata-v2
Tag PyPlot v1.2.9
Tag UAParser v0.2.0
Tag BinDeps v0.2.13
Merge pull request #973 from randyzwitch/metadata-v2

Tag UAParser v0.2.0
Tag SymPy v0.2.10
Merge pull request #975 from jverzani/pull-request/6643769e

Tag SymPy v0.2.10
Tag StatsBase v0.4.4
Tag StatsBase v0.5.0
Bump ForwardDiff
Merge pull request #974 from kmsquire/pull-request/5a64b658

Tag BinDeps v0.2.13
Register OpenStreetMap: v0.0.1, v0.1.0