Add Changelog for v0.125

CHANGELOG.md

@@ -1,3 +1,21 @@
+### v0.125 (2015-10-22)
+- Provide a SANDSTORM=1 environment variable so apps can decide if they are
+  running in Sandstorm, through a check at runtime.
+- Make the Meteor stack less verbose.
+- Avoid Vagrant's scary red colorization of stderr.
+- More useful help text; thanks @pwais.
+- By default, don't limit max body size for inbound HTTP messages in stacks
+  that use nginx. This fixes a problem where apps generated by vagrant-spk
+  could not accept large (>1MB) file uploads.
+- Upgrade meteor stack to meteor-spk 0.1.7, which results in Meteor apps
+  getting MongoDB 3.x.
+- Make better VM names in VirtualBox, based on the path of the directory
+  containing .sandstorm/ (typically the name of the app) and the current
+  time (to avoid conflicts).
+- Provide more RAM & CPU on Windows-based vagrant-spk VMs, similar to how
+  we calculate this on Linux.
+- Add experimental "auto" command, for automatic packaging of Meteor apps.
+
 ### v0.107 (2015-09-01)
 - Add "publish" command, so this can be used with https://apps.sandstorm.io/.
 - Fix small bugs: