Use encodeURI in r2.js and implement http upload support
Initial implementation of http.upload (disabled by default)

Open http://localhost:9090/upload.html to upload
curl -F file=@/bin/ls http://localhost:9090/up/ls.bin
Tested on 10MB files without problems
Default upload directory is $TMPDIR
Add io.zeromap to toggle old buggy mode doublemapping file to 0

Add http.maxsize to define the maximum file size to be uploaded
Add http.upget config var (not yet implemented)
Add keep calm r2 images
rasm_asm: do not free acode result before returning its length
fix keepr2 proportions
Better http support and handle asm.offset in 'px'.

Implement dirlisting in http
get in /up/. Honor asm.offset in 'px'.
Fix r_file_root and crosspath vuln in http server
Fix static build. Generate single libr.a
Apply zlul's enhacements for html.sh
Fix one byte access in r_str_uri_encode
Fix 'last' symlink (thanks @poliva)
Hide dummy draggable register window in webui
VAPI: More fixes for r_bin.
Fix 'dr*' command
Update enyo from git and huge refactoring in r2wui
Fix arm thumb disassembler (needs testing)