Update README.md

point to release branch build badge
Bump version to 3.7.0
TISTUD-6548 Studio installer version on Mac displays 3.0 despite being 3.3.0
  - Inject versions and year into Info.plist as part of our build rather than relying on updating it ourselves
  - Fix the update site we point at to Kelper from Indigo (since we now build on 4.3 as our base).

Conflicts:
	builders/com.aptana.rcp.build/build_local.properties
TISTUD-6548 Studio installer version on Mac displays 3.0 despite being 3.3.0
  - Inject versions and year into Info.plist as part of our build rather than relying on updating it ourselves
  - Fix the update site we point at to Kelper from Indigo (since we now build on 4.3 as our base).
Fix version to 3.7.0
TISTUD-5923 Appcelerator Studio: Top menu bar not appearing
TISTUD-5923 Appcelerator Studio: Top menu bar not appearing
TISTUD-6576 3.3.0 Studio Installer: Studio is installed in the wrong location
  - Make installer per-user, and install to AppDataFolder instead of ProgramFilesFolder.
TISTUD-6577 3.3.0 Studio Installer: Status bar resets back to zero as install progresses
  - Fix attempt: Try and use the workaround suggested in the forums
TISTUD-6576 3.3.0 Studio Installer: Studio is installed in the wrong location
  - Make installer per-user, and install to AppDataFolder instead of ProgramFilesFolder.
TISTUD-6577 3.3.0 Studio Installer: Status bar resets back to zero as install progresses
  - Fix attempt: Try and use the workaround suggested in the forums
APSTUD-8217 Windows: Aptana Studio Installer: Studio does not install JRE and hence fails installation
APSTUD-8217 Windows: Aptana Studio Installer: Studio does not install JRE and hence fails installation
Fix TISTUD-6618 Studio installer does not install mandatory Prerequisite
Fix TISTUD-6618 Studio installer does not install mandatory Prerequisite
TISTUD-6593 Unable to install studio when git is manually installed using context menu option - since git1.8.3
TISTUD-6593 Unable to install studio when git is manually installed using context menu option - since git1.8.3
TISTUD-6291 Windows: Studio installer does not recognize the installed JDK
  - force searching both 32-bit and 64-bit registry locations for JRE
TISTUD-6291 Windows: Studio installer does not recognize the installed JDK
  - force searching both 32-bit and 64-bit registry locations for JRE
TISTUD-6645 Windows: Additional folder created as "Appcelerator, Inc" on running the installer on clean machine
  - change Manufacturer to simply "Appcelerator"