Pass fieldKey instead of fieldName, signature and staticFlag to getField
Fix all getField callers
Fix last instance in classinfo.js. Fixes #344.
Use | 0
Use 'S' for static, 'I' for non-static
Fix last instance in midp/gfx.js
Merge branch 'master' of https://github.com/andreasgal/j2me.js into pass_key_to_getfield

Conflicts:
	classes.js
Merge pull request #349 from marco-c/pass_key_to_getfield

Pass field key to getField
Merge branch 'master' of https://github.com/andreasgal/j2me.js into optimize_ByteArrayOutputStream
Update method to access fields
Actually update method to access fields