Add changelog (#104)

* Add a changelog, dates to 2017-08-23

Signed-off-by: Joe Farro <joef@uber.com>

CHANGELOG.md

@@ -0,0 +1,62 @@
+# Changes
+
+
+### [#97](https://github.com/jaegertracing/jaeger-ui/pull/97) Change to Apache license v.2 and add DCO / CONTRIBUTING.md
+
+
+### [#93](https://github.com/jaegertracing/jaeger-ui/pull/93) Keyboard shortcuts and minimap UX
+
+- Fix [#89](https://github.com/uber/jaeger-ui/issues/89) - [trace view] Drag and release on timeline header row zooms into respective range
+- Fix [#23](https://github.com/uber/jaeger-ui/issues/23) - [trace view] Navigate and zoom via minimap
+- Fix [#22](https://github.com/uber/jaeger-ui/issues/22) - [trace view] Pan and zoom via keyboard shortcuts
+
+
+### [#84](https://github.com/jaegertracing/jaeger-ui/pull/84) Improve search dropdowns
+
+- Fix [#79](https://github.com/uber/jaeger-ui/issues/79) - Sort services and operations operations (case insensitive)
+- Fix [#31](https://github.com/uber/jaeger-ui/issues/31) - Filter options based on contains instead of starts with
+- Fix [#30](https://github.com/uber/jaeger-ui/issues/30) - Filter options based on case insensitive match
+
+
+### [#78](https://github.com/jaegertracing/jaeger-ui/pull/78) Custom menu via /api/config with project links as defaults
+
+- Fix [#44](https://github.com/uber/jaeger-ui/issues/44) - Add configurable, persistent links to the header
+- **Support for this is WIP in query service**
+
+
+### [#81](https://github.com/jaegertracing/jaeger-ui/pull/81) Fix Google Analytics tracking
+
+
+### [#77](https://github.com/jaegertracing/jaeger-ui/pull/77) Fix trace mini-map blurry when < 60 spans
+
+
+### [#74](https://github.com/jaegertracing/jaeger-ui/pull/74) Make left column adjustable in trace detail
+
+
+### [#71](https://github.com/jaegertracing/jaeger-ui/pull/71) [trave view] Mouseover expands truncated text to full length in left column
+
+
+### [#68](https://github.com/jaegertracing/jaeger-ui/pull/68) Virtualized scrolling for trace detail view
+
+- Performance improved for initial loading, expanding span details, text search and scrolling
+
+
+### [#53](https://github.com/jaegertracing/jaeger-ui/pull/53) Refactor trace detail
+
+- Partial fix for [#42](https://github.com/uber/jaeger-ui/issues/42) - Support URL prefix via homepage in package.json
+- Scatterplot dots are sized based on number of spans
+- Scatterplot dots mouseover shows trace name
+- Clicking span detail left column collapses detail
+- Clicking anywhere left of parent span name toggles children visibility
+- Clip or hide span bars when zoomed in (instead of flush left)
+- Label on span bars no longer off-screen
+- Full width of the header is clickable for tags, process, and logs headers (instead of header text, only)
+- Horizontal scrolling for wide content (e.g. long log values) (Fix [#58](https://github.com/uber/jaeger-ui/issues/58))
+- Tall content scrolls via entire table instead of single table cell
+- Fix [#55](https://github.com/uber/jaeger-ui/issues/55) - Some tags were not being rendered due to clashing keys (observed in a log message)
+- Fix [jaegertracing/jaeger#326](https://github.com/jaegertracing/jaeger/issues/326) - extraneous scrollbars in trace views
+- Ticks in span graph made to match trace detail (in number and formatting)
+- Fix [#49](https://github.com/uber/jaeger-ui/issues/42) - Span position in graph doesn't not match its position in the detail
+
+
+### [Changes from before 2017-08-23 are not logged here](https://www.youtube.com/watch?v=NoAzpa1x7jU&feature=youtu.be&t=107)