Initial value in enums now default to 0

• The initial value of an enum now defaults to 0

SimpleEnum: enum {
    Foo,    // 0 
    Bar     // 1
}

CustomIncrement: enum (+2) {
    Foo,  // 0 
    Bar,  // 2
    Moo   // 4
}

// Values will always be zero
CustomIncrementMultiplyWrong: enum (*2) {
    Foo,  // 0 
    Bar   // 0
}

// Set an initial value
CustomIncrementMultiplyCorrect: enum (*2) {
    Foo = 1,  // 1
    Bar,      // 2
    Moo,      // 4
    Koo       // 8
}

Type inference improvements and null-coalescing operator bugfix

Notable changes:

• Improvements in type inference
• null-coalescing operator is no longer evaluating the LHS twice
  • usage: moo := foo ?? bar // if foo is null, set moo to bar

In some cases, we are still required to qualify S, such as when S is used in an argument in a Func:

// this works
map: func <S> (function: Func(T) -> S) -> S
// error Not enough info to resolve return type S of function call
fold: func <S> (function: Func(T, S) -> S, initial: S) -> S
// this works
fold: func <S> (S: Class, function: Func(T, S) -> S, initial: S) -> S

Prints the absolute path upon error(s)

Merge pull request #23 from thomasfanell/master

rock now prints the absolute path upon error(s)

Debian package for rock_1.0.9

TString operator t"" added.

Debian package for rock_1.0.8

Updated with commits from master.

Debian package for rock_1.0.7

Now possible to override abstract function.

Debian package for rock_1.0.6

Warnings for unknown version names are no longer displayed by default. Rock flag - versionwarning will make rock display them.

Debian package for rock_1.0-5

With stack alloc.

Debian package for rock_1.0-4

With fancy backtrace.

Debian package for rock_1.0-3

Added general compiler flags to Android make file.