Updated Changelog (markdown)

Changelog.md

@@ -4,10 +4,17 @@ This change log tracks the releases on our [pilot server](https://recodex.mff.cu
 
 | Date | [web-app](https://github.com/ReCodEx/web-app/releases) | [api](https://github.com/ReCodEx/api/releases) | [worker](https://github.com/ReCodEx/worker/releases) | [broker](https://github.com/ReCodEx/broker/releases) | [fileserver](https://github.com/ReCodEx/fileserver/releases) | [monitor](https://github.com/ReCodEx/monitor/releases) |
 | --- |:---:|:---:|:---:|:---:|:---:|:---:|
+| 16.1.2018    |  v1.4.4  |  v1.4.4  |  v1.2.1  |  v1.2.0  |  v1.2.1  |  v1.0.0  |
 | 3.1.2018    |  v1.4.3  |  v1.4.3  |  v1.2.1  |  v1.2.0  |  v1.2.1  |  v1.0.0  |
 | 19.12.2017  |  v1.4.1  |  v1.4.1  |  v1.2.0  |  v1.2.0  |  v1.2.0  |  v1.0.0  |
 
+## 16.1.2018
 
+* webapp - tbd
+* Several modifications in API and default pipelines, which are not apparent from webapp yet:
+** All compilation pipelines supports extra source files given by exercise author (so custom frameworks or boilerplates may be used in exercises)
+** Added cpu-time alongside wall-time in exercise limits and submission evaluation
+** Users registered externally are now able to create local account with appropriate endpoint
 
 ## 3.1.2018