v0.10.2: Attempt at fixing alignment bug

Another attempt at fixing #26, based on suggestion from @tc-hib.

v0.10.1: Generate RT_GROUP_ICON id before ICON ids

Reorder icon IDs to make them somewhat more deterministic and easier to use.

v0.10.0

Attempt at fixing bugs related to upx & others, by aligning resources in the .syso. HUGE thanks @tc-hib.

Also took this chance to do some smaller usability improvements:

• remove long deprecated -data flag
• default -o filename now includes GOOS and GOARCH tags for easier proper linking
• default -arch is now amd64 (what most users would probably expect)

v0.9.0

Add experimental support for -arch=arm and -arch=arm64 (thanks @fcharlie)

Updated for Go 1.4

This release has usage information updated for Go 1.4: the "-data" option is no longer useful. I'm not removing it completely however for now, in case someone has some specific uses for it.