updating changelog and version numbers in docs for 1.4.1 release

Signed-off-by: Edward Welch <edward.welch@grafana.com>

CHANGELOG.md

@@ -1,3 +1,13 @@
+## 1.4.1 (2020-04-06)
+
+We realized after the release last week that piping data into promtail was not working on Linux or Windows, this should fix this issue for both platforms:
+
+* [1893](https://github.com/grafana/loki/pull/1893) **cyriltovena**: Removes file size check for pipe, not provided by linux.
+
+Also thanks to @dottedmag for providing this fix for Fluent Bit!
+
+* [1890](https://github.com/grafana/loki/pull/1890) **dottedmag**: fluentbit: JSON encoding: avoid base64 encoding of []byte inside other slices
+
 ## 1.4.0 (2020-04-01)
 
 Over 130 PR's merged for this release, from 40 different contributors!!  We continue to be humbled and thankful for the growing community of contributors and users of Loki.  Thank you all so much.

docs/clients/promtail/installation.md

@@ -12,7 +12,7 @@ Every release includes binaries for Promtail which can be found on the
 
 ```bash
 # modify tag to most recent version
-$ docker pull grafana/promtail:1.4.0
+$ docker pull grafana/promtail:1.4.1
 ```
 
 ## Helm

docs/installation/docker.md

@@ -11,15 +11,15 @@ For production, we recommend Tanka or Helm.
 ## Install with Docker
 
 ```bash
-$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.0/cmd/loki/loki-local-config.yaml -O loki-config.yaml
-$ docker run -v $(pwd):/mnt/config -p 3100:3100 grafana/loki:1.4.0 -config.file=/mnt/config/loki-config.yaml
-$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.0/cmd/promtail/promtail-docker-config.yaml -O promtail-config.yaml
-$ docker run -v $(pwd):/mnt/config -v /var/log:/var/log grafana/promtail:1.4.0 -config.file=/mnt/config/promtail-config.yaml
+$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.1/cmd/loki/loki-local-config.yaml -O loki-config.yaml
+$ docker run -v $(pwd):/mnt/config -p 3100:3100 grafana/loki:1.4.1 -config.file=/mnt/config/loki-config.yaml
+$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.1/cmd/promtail/promtail-docker-config.yaml -O promtail-config.yaml
+$ docker run -v $(pwd):/mnt/config -v /var/log:/var/log grafana/promtail:1.4.1 -config.file=/mnt/config/promtail-config.yaml
 ```
 
 ## Install with Docker Compose
 
 ```bash
-$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.0/production/docker-compose.yaml -O docker-compose.yaml
+$ wget https://raw.githubusercontent.com/grafana/loki/v1.4.1/production/docker-compose.yaml -O docker-compose.yaml
 $ docker-compose -f docker-compose.yaml up
 ```

docs/operations/loki-canary.md

@@ -60,7 +60,7 @@ Loki Canary is also provided as a Docker container image:
 
 ```bash
 # change tag to the most recent release
-$ docker pull grafana/loki-canary:1.4.0
+$ docker pull grafana/loki-canary:1.4.1
 ```
 
 ### Kubernetes