add \Str::random('uid')
fix indentation
fix indentation (again)
Added the reverse routing with regex's named groups to Router::get()
make method comply to official UUID version 4 spec
fixed session update timestamp not being updated
Make private method protected for extensibility
Merge pull request #1502 from propcom/1.7/develop

Make private method protected for extensibility
Add method to interrogate image driver about image type (extension)
upgraded htmLawed to 1.1.15
Merge branch '1.7/develop' of https://github.com/fuel/core into 1.7/develop
deal with embedded unicode properly
fixed typo in Num, closes #1506
fixed Num tests after fixing Num. Related #1506
Merge pull request #1503 from propcom/publicly-access-image-extension

Add method to interrogate image driver about image type (extension)
Merge pull request #1493 from narugami/1.7/develop

Added the reverse routing with regex's named groups to Router::get()
implemented Uri::build_query_string(). Closes #1425
added unit test for Uri::build_query_string()
report E_ERROR errors as fatal
change uid to uuid