Detect integer length from literals and remove "std::".
Allow implicit type conversions for comparisons.
Tests for type conversion at comparison.
More information for type expectation errors.
Proper type promotion and conversion.
Type promotion fixes and tests.
Fixes for test framework (sign the transaction).
Keywords for all integer types.
Support for negative literals.
Stylistic changes.
Re-added some changes lost in merges.
Merge remote-tracking branch 'ethereum/develop' into sol_typePromotion
Removed superfluous braces.
Merge pull request #478 from chriseth/sol_typePromotion

Type promotion