Small update for latest Rust version

Replaced `pub extern` with just `extern` and properly casted a type for a vector.
Add wrappers for glScissor and glGetIntegerv
Merge pull request #47 from eschweic/glscissor

Add wrappers for glScissor and glGetIntegerv
Merge pull request #48 from webconvforge/PRbase

support android build
Merge pull request #45 from jmgrosen/latest-rust

Small update for latest Rust version
More Rust version updates
Merge pull request #49 from kmcallister/rust-upgrade

More Rust version updates
Make the configure script executable
Update to latest Rust version
Change opengles.rc to standard (and rustpkg compatible) naming conventions
More Rust version updates
Merge pull request #50 from sstewartgallus/master

Fix up some small nits with rust-opengles
Merge pull request #51 from kmcallister/rust-upgrade

More Rust version updates
Switch from -o to --out-dir.
Revert to using -o for tests
Merge pull request #52 from kmcallister/otest

Revert to using -o for tests
Update for language changes
Merge pull request #53 from brson/master

Update for language changes
str::from_bytes is now str::from_utf8
Merge pull request #54 from brson/master

str::from_bytes is now str::from_utf8